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In ordinary cases twenty-five copies of each paper are supplied gratis to the author, and in cases approved of by the Publication Com- mittee fifty copies may be supplied without charge. Additional copies may be obtained at cost price. TRANSACTIONS PROCEEDINGS oa 7 New Zealand, We llmaton NEW ZEALAND INSTITUTE VOL. 54 (New 168СЕ) EDITED AND PUBLISHED UNDER THE AUTHORITY OF THE BOARD OF GOVERNORS OF THE INSTITUTE ISSUED 14TH DECEMBER, 1923 Wellington, N.Z. W. A. G. SKINNER, GOVERNMENT PRINTING OFFICE WHELDON, WESLEY AND SON, 28 ESSEX STREET, STRAND, LONDON W.C.9 ERRATA. Page 206: For explanation of figs. 5 and 6 substitute— Fie. 5.—Forewing of Zelandobius confusus (Hare). Fie. 6.— Wings of Zelandobius hudsoni (Hare). Page 574: In title, for Natural Self-fertilization read Natural Cross- fertilization. Page 795, in formula for y, numerator of last term should read су (1—2), not Cy(l—z); and in formula for z the denomination should read cy, not Cy. NOTE. A certain number of copies of Volume 53 were issued without Plates Nos. 24-27. If any one to whom such a defective volume was supplied wi return it to the Secretary a perfect volume will be sent to replace it. ALLEN SIN ACADEMY OI ISCON SCIENCES ARTS " y bad PIERS ANDI F SEMI-CENTENNIAL MEDALLION OF THE WISCONSIN ACADEMY OF SCIENCES, ARTS, AND LETTERS. Тн memorial medallion reproduced on the opposite page was sent to the New Zealand Institute with the following printed note :— Herewith is sent a copy of the medallion which commemorates the fiftieth anniversary of the Academy. It was designed by the sculptor Leonard Crunelle, of Chicago. The obverse bears the figure of Minerva with a motto from Lucretius—- Naturae species ratioque. The reverse bears the ae of six leading members of the Academy during the half centur Tuomas C. CHAMBERLIN (1845- ): есйм: Professor, Beloit College; State Geologist, Wisconsin ; — University of Wisconsin; now Ресен, Universit ty of Chicag INCREASE A, LAPHAM (1811-1875), of Milwaukee : Q^ ee natu- ralist, geologist ; State Geologist, Wisconsin, 1873-1875. Grorce W. РескнаАМ (1845-1914), of Milwaukee: Teacher, librarian, ai ogist Rotanp D. IRVING (1847-1888), me Madison: Geologist ; Professor, University of Wisconsin; Geologist, Wisconsin and Unit States Geological Surveys WirriAM Е. ALLEN (1830-1889), of Madison: Historian; Professor of Latin and History, University of Wisconsin HILO R. Hoy (1816-1892), of Racine : Physician, naturalist. All of these men contributed largely to the success of the Academy ; five were among its founders; each served as its President except Dr. Lapham, who was its first Secretary and acted in that capacity until his death. An account of the medallion and sketches of the lives of the six members will appear in vol. 20 of the Transactions of the Academy, now in press. DEL. Le [Face p. ix. OBITUARY. JAMES HECTOR, 1834-1907. Taer time that has elapsed between the death of the principal founder of the New Zealand Institute, and the publication in the Transactions of the Institute of this appreciation of his work makes it clear that, in the perspective of the years, instead of sinking he rises in his position among great scientifie workers ames Hector was born Edinburgh on the 16th March, 1834. His father was a conveyancer of | note and Writer to the Signet, a friend of Sir Walter Scott, for whom he was wont to transcribe and translate old manuscripts. His mother was a niece of Dr. Barclay, founder of the Royal College of Surgeons' Museum, Edinburgh, and the teacher of Owen, Knox, Ballingall, Campbell, and a host of other surgeons and anatomists of renown. Hector received his early training at the Edinburgh Academy and High School. At fourteen he entered his father’s office, which he left on being articled to an actuary, with whom he stayed three years, at the same time attending classes at the University and School of Arts. Quite early he manifested a strong inclination towards chemistry and natural science. In November, 1852, he gave up all office-work and matriculated at Edinburgh University as a medical student, the medical course then offering the only avenue to scientific study. So it was with Owen, Huxley, and Medical student though - was, and earnest as a student England, or in Ireland. The resourcefulness that he developed, the habit of quick and aceurate observation, the general value of his student work, attracted the attention of his teachers. While attending Balfour's classes in botany he was selected by his professor to give to the Botanical Society an account of the geological and physical е of the ground gone - in excursions. There being no Chair of Geology in the university, h attended extra-academic lectures on geology, pipi ue and palacomialogy delivered by Macadam, Rose, and Page. He took the degree o 1856. It is interesting to note that he handed in a graduation thesis on * The Antiquity of Man,” the title chosen by Lyell in 1863 for one of his famous books. x Obituary. For a short time after taking his degree Hector acted as assistant to Sir J. Y. Simpson, and that was the only definite medical a »ointment that he ever held, hearing always the insistent call of science, especially of geology. the Canadas and the country west of Lake Superior and north of the to a large belt of country until now almost unknown—-namely, that com- prised between longitude 97? W. and the Rocky Mountains, and ranging from the 49th parallel of latitude to the North Saskatchewan. “ In addition to both these motives, the Government wished to ascertain whether any practicable pass or passes available for horses existed across the Rocky Mountains within the British territory, and south of that known (This was the only pass then known, and horses could not cross it.) The bulk of the scientifie work fell on Hector. Not only did he share а man or two, and, with Indian guides, to make long excursions on snow- shoes, and with dog-sleighs, sleeping in the snow and learning to know al parts of the territory, under the severe, almost arctic, conditions of winter, the temperature being often 50? below zero. He walked over one thousand miles in this fashion, living on pemmican or on any chance game, and often being on the shortest of rations. е discovered and explored five different passes over the British Rocky Mountains, One of these is the famous Kicking Horse Pass, throngh which J . In his fi refers to the discovery: “Dr. Hector followed the Bow River right up to the main watershed of the continent, then followed it until he reached а transverse watershed which divides the waters of the Columbia and those _ of the Northern Saskatehewan on the one hand from those of the Kootanie пп і askatchewan оп the other. There he found à facilities for crossing the mountaj dy ms 1{аїпз.” names Kicking Horse River and Kicking h = Кин тш em embers of Hector's party on account of his aving been kicked in the chest by his horse, an accident that nearly cost him his life. He һу : ed to see the railway that the Divide by the Cm that his courage and endurance bad он, еи Obituary. xi These two brief quotations from the report must suffice to show the magnitude of Hector's share of the work of the expedition. During the winter of 1857-58 he mapped the whole of the North Saskatchewan, from Carlton to Rocky Mountain House, a distance of nearly 9? of longitude. In his Senn was the making of the maps, geographical as well as geologi Before returning to England Hector made a geological examination of Vancouver Island, and of the cnt adn of British Columbia and California, as well as of some of the mines of northern Mexico. On his return to England he ected the gold medal of the Royal Geographical Society. He received also, again at the instance of Sir Roderick Murchison, two offers of appointment: the first as Geologist at Kashmir, holding also the position of Political Agent, with large emolu- ments ; the second as Geologist to the Provincial Government of Otago, with no extravagant emoluments. There is no need to say which Hector chose. Arrived in New Zealand, he at once set about making a thorough exploration, especially from the point of view of geology, of the mountainous districts and the sounds of the province, work that was accomplished with great difficulty and hardship. In 1864 he was commissioned to make a tour of the colony in order to determine how its resources could best be demonstrated at the Exhibition, the first of its kind in New Zealand, to b in Dunedin in the following year. In 1865 he was appointed Director of the Geological Survey Department of the colony. With the small staff of assistants that could be afforded, he rapidly pushed on a geological survey of the country. Recognized as the adviser of the Government on practically all scientific matters, he had, unfortunately, to devote much time to work that hindered that which he had most at heart. Whilst the work of administration and advice was most efficiently done, he was still able to find time for an immense amount of most useful original scientific research. We may be pardoned if we give a high place to the founding of the New Zealand Institute, in 1868, among the achievements of this period of his life. From the foundation of the Institute he was for thirty-five years its Manager, and the Editor of its Transactions, doing this and much more as a labour of love, and so establishing a high tradition in its service. The Transactions, the reports of his Department, parliamentary papers, bulletins—all show the results of his untiring industry. It may safely be said that, among all the able workers that New Zealand has had, none has a greater volume of achieve- ment, and few have reached as high a standard. When the first Senate of the University of New Zealand met, in 1871, Sir James Hector was one of its members; in 1885 he was el ected Chancellor, holding that office until his retirement in 1903. In this office he was able to render much service to the cause of higher education in New aland. An idea of the high esteem in which his scientific work was held may be had from the fact that the following honours, among others, were conferred upon him :— : In 1857 he was elected a Fellow of the Royal Physical Society. In 1860 he became a Fellow of the Royal Society of Edinburgh, and of the Geological Society, London. In 1866 he was elected a Fellow of the Roval Society of London. In 1874 he received from the German Emperor, by permission of the New Zealand Government, the Order of the Golden Cross. xii Obituary. In 1875 he received the Order of C.M.G., and in 1886 the honour ot K.C.M.G. was conferred upon him. He was elected to the honorary mem- bership of practically all the great learned societies of Europe, America, and Australia. On retiring from office in 1904 he paid a visit to the scene of his early labours in the Rocky Mountains, accompanied by his son Douglas. He was everywhere received with enthusiasm by the people; but the cup of joy was suddenly dashed from his lips by the death of his son and. com- panion at Revelstoke, on the Columbia River. Returning alone, he lived at his home, near Wellington, until his death, iu 1907. n recognition of his great work for Canada, the Canadian Government has placed on the highest point of the Great Divide a monument to his memory. A monument not less enduring exists in New Zealand in the esteem in which he is held in the hearts of men. Few great men have had a more charming personality, more breadth of interest, or a greater readiness to help and encourage beginners in scientific research. These notes of Hector's life have been taken mainly from material supplied by Lady Hector and Dr. C. Monro Hector. The present writer greatly regrets that it has been necessary to keep within narrow space- limits, realizing that a memorial volume wonld be more fitting than à memorial notice. Н. B. Квк. Obituary. xiii STEPHENSON PERCY SMITH, 1840-1922. THE late Stephenson Percy Smith was born at Beecles, Suffolk, in June, 1840. He was the eldest son of John Stephenson Smith, member of an old East Anglian family, who brought his family out to New Zealand in the ship “ Pekin," which arrived at New Plymouth on the 7th February, 1850. Here the family settled and took part in the opening-up of what was for many years an almost isolated district. Mr. Smith joined the Survey Department at New Plymouth in 1855, and later became an assistant surveyor. He followed up his profession until his retirement from the service in 1900. In 1857-58 Mr. Smith, together with several young companions, under- took an extended walking-tour across the Island from Taranaki to the Bay of Plenty by way of Mokau, Taupo, and Rotorua, returning by the Whanganui route. That trip was marked by the careful noting of much interesting data concerning the Maori and the natural productions of the districts traversed, a habit that Mr. Smith cultivated throughout his long life During the years 1859-63 Mr. Smith was connected with the Native - Land Purchase Department in the Auckland District. The year 1865 found him back at Taranaki, where he pursued his profession for years under difficult and often extremely dangerous conditions. He spent the year 1868 in the triangulation and subdivision of the Chatham Islands. In the following year he returned to Taranaki, and for about six years he was engaged in the major triangulation of the North Island. In 1877 he was appointed Chief Surveyor of the Auckland District, and in 1882 he became Assistant Surveyor- General. In 1889 he was appointed to the highly in 1900 after forty-five years of service. That long period of service € marked by unusual ability and devotion to duty, and by the confidence o sueceeding Governments. pan The еви qualities possessed by Mr. Smith led to his being entrusted with various missions and tasks outside his professional activities. сех we have his interesting work on the eruption of Tarawera of 1886, re shows that, had he devoted himself to geology, that science would hr gained an able interpreter. In 1887 he was sent to the Kermadec i in order to take possession of that group, and in the latter " nineties ted appointed Chairman of the Urewera Commission. In 1902 he was reques by the Governor of New Zealand to proceed to Niue in order to institute a d . i i i ble work in Mr. Smith will probably be best remembered by his remarkabl i Polynesian ө заг ыз: He had an peus eru of eR lif 1 d customs of our native folk, ав азо - M ea e QA ot ihe various far-scattered divisions of the Polynesian race in northern isles. He collected a great mass of data con- xiv Obituary. Apart from his remarkable achievement in the conduct of the above journal, Mr. Smith published much valuable matter in book form. Of these the most notable is Hawaiki—T he Original Home of the Maori, published in 1898 (fourth edition 1921); while others were as follows: The Kermadec Islands (1887); The Peopling of the North (1898); Niue Island and its People (1903) ; Maori Wars of the Nineteenth Century (1904 ; second edition 1910) ; History and Traditions of the Maoris of the West Coast (1910) ; The Lore a the Whare Wananga (Part 1, 1913; Part 2, 1915). n recognition of his valuable work in Polynesian ethnology he was, in 1919, awarded the Hector Medal by the New Zealand Institute, of which Institute he was one of the first twenty Fellows elected in 1920. He was corresponding member of the Royal Anthropological Institute of Great Britain, of the Societa d’Anthropologia d’Italia, of the Royal Geographical Society of Australasia, and of the Hawaiian Historical Society. In the years that lie before, the result of Mr. Smith’s talents and indefatigable industry will assuredly be highly appreciated by students of Maori enthnology and the early history of New Zealand and Polynesia. He was a жеры collector (in itself а rare quality) апа a facile write combinatio Above all throughout the long life of Stephenson Percy Smith shone forth the powers and wide influence of sterling character. He died at his residence, “ Mataimoana," New Plymouth, on the 19th April, 1922. Etspon Best. DAVID SHARP, 1840-1922. Dr. Davip SHARP, one of the most distinguished entomologists of the present time, died at his residence, Lawnside, Brockenhurst, England, on Sunday, the 27th August, 1922. He was born at Towcester, Northants, on the 15th October, 1840. He studied medicine, first at St. Bartholomew’s Hospital, London, and subsequently at Edinburgh, where, in 1866, he pated as M.B. and C.M. In 1867 he was appointed to the Crichton In 1 gaat js the ien Museum | p he retained until 1909, wl = built a house at ‘Brockenhurst, o p oc the New Forest, Kon attention was given to the vii order his name will be эы жайы associated in the fut с" кан Obituary. xv To him are due two excellent catalogues of the English n issued in 1871 and 1893, the latter in conjunction with the Rev. Canon Fowler. In the Scottish Naturalist he published (1871-79) an бабта peter list of Coleoptera north of the border. His most important contribution to the Transactions of the Entomological Society of London was an essay, issued in 1912 (in conjunction with Mr. F. Muir), * On the Comparative Anatomy of the Male Genital Tube in d tu Ta His best book is the treatise on “ Insects,” forming the greater part of two volumes of the Cambridge Natural History (1895-99). ОҒ this it can safely be said that no work of equal value on general entomology has been produced in Britain since Westwood's Introduction, which appeared more than half a century before. Dr. Sharp's extensive collection of Coleoptera from all parts of the world was, a few years before his death, acquired by the nation: the whole of his library was purchased by the Cawthron Institute, Nelson He joined the Entomological Society of London in | 1869, and at the time of his death he was the senior surviving Fellow. He was Vice- President on four separate occasions, and President in 1887 and 1888. In 1890 he was elected a Fellow of the Royal Society. He was honorary or corresponding member of most of the chief entomological societies through- out the world, and he specially valued his connection with the New Denn Institute. Of this he was the oldest surviving honorary member, a: been appointed in 1877, the date of the next oldest being as recent s 1890. Dr. Sharp's influence on New Zealand entomology has been very great. From early in the “ seventies " of last century until about the year 1888 he was in constant correspondence with that indefatigable collector the late Mr. R. Helms, of Greymouth, and as a result of the joint labours of these two naturalists some of our most conspicuous and remarkable beetles were first made known to science. Later on, the writer of this notice also had the privilege of corresponding with Dr. Sharp, and it was entirely gue to his influence and encouragement that a paper appeared in the ions of the New Zealand Institute for 1893 stressing the urgent cro for the formation of extensive collections of New Zealand anima and plants (including, of course, insects) before the further ne of settlement had resulted in the extermination of many interesting speci To Dr. Sharp's very early association with the great English а Herbert Spencer may probably be ascribed his cautious and extremely logical mode of thought. Whilst keeping closely in touch, throughout his long life, with modern evolutionary doctrines, he never owed himself to be unduly led away by enthusiasm. He always kept his great store of facts steadily in view when attempting to test the truth of theories supposed to explain the multifarious phenomena of insect-life. G. V. HUDSON. xvi Obituary. CHARLES ALFRED EWEN, 1852-1921. THE late Mr. C. A. Ewen was born at Birmingham, England, in 1852—a son of Walter Ewen, who came to New Zealand in 1854, and settled in Auckland. He was educated in the Auckland High School, where he won the medal for special ability. ship of the Commercial Union Assurance Company, which position he held up to the date of his death. and Government representative on the Board of Science and Art. He was He was keenly interested in science and art, and his collection of books dealing particularly with New Zealand and Australia, made during his , very extensive, as, too, was usy business man and assiduous ly one paper in the Transactions of the Institute, he materially assisted the Institute in his position of Honorary Treasurer. He married, in 1883, Jane Dou Sutton, of Hawke's Bay, M.P. for died at his home on 9th April, 1 glas, daughter of the late Frederick that district for a number of years, and 921, leaving a widow and two daughters. JOHANNES C. ANDERSEN. t. WDA Face p. xvi.] Obituary. xvii THOMAS FREDERIC CHEESEMAN, 1846-1923. By the death of Thomas Frederic Cheeseman on the 15th October, 1923, the New Zealand Institute has lost a highly distinguished Fellow whose name must be added to that select band—Colenso, Kirk, Haast, Hector, and Hutton—who, with himself, working in this country, have laid a lasting foundation on which is being erected the splendid edifice of New Zealand natural history. Cheeseman, though nominally an Englishman through being born at Hull, in Yorkshire, in 1846, was in reality a New-Zealander, since he came to the colony with his parents when only eight years of age, and was educated first at the Parnell Grammar School and later at St. John’s College, Auckland. His father, the Rev. Thomas Cheeseman, was at one time member of the old Auckland Provincial Council, and took a had way, so sound a knowledge of the plants of his neighbourhood that he was able to publish an accurate and comprehensive account of the plant-life of the Waitakarei Hills. This paper is far from being obsolete, for it is the sole record of a vegetation which is now profoundly modified. : In 1874 Cheeseman was appointed Secretary of the Auckland Institute and Curator of the Museum, then in its early infancy. How far-reaching for the scientific advancement of New Zealand, and indeed for the general an interest in all branches of natural history. u: | books, twenty-two deal with zoological or ethnological subjects; indeed, it was this wide knowledge which fitted him so eminently for his museum NC was as a botanist that Cheeseman stood pre-eminent, and it is his work in floristic botany which has made his name widely known in all lands. At the time his researches commenced, the greater part of New Zealand was almost unknown botanically, so that a keen search for plants in all directions was demanded ; fresh material was also essential for the accurate study of many species admitted by Hooker. During his vacations, therefore, Cheeseman assiduously sought to remedy this state of affairs, and many were his excursions. The most important communications from his pen on this head concern the Nelson Provincial District, the Kermadec and Three Kings Islands, and the area from. Mangonui to the far north : but these by no means reflect all his activities in the field, nor give any xviii Obituary. idea of the number of species he discovered or specially investigated. All this is better reflected in his Manual, wherein are indicated the many he was accompanied by his friend the late Mr. J. Adams, of the Thames High School, and the names Senecio Adamsii and Elytranthe Adamsi, bestowed by Cheeseman, are a fitting memento of their comradeship. | Cheeseman’s explorations were not confined to the New Zealand Botanical Region ; he also visited Polynesia, and published in the Transactions of the Linnean Society a comprehensive account of the flora of Rarotonga, the chief island of the Cook Group. His general botanical knowledge was wide The Manual of the New Zealand Flora, to which must be added his and Hemsley's Illustrations of the New Zealand Flora (1914). Then come is writings of a philosophieal character which deal with the origin of the New Zealand subantarctic flora, and a naturalized plants of the Auckland Provincial District Finally, amongst his earlier writings also are several papers dealing with the pollination of certain species— a matter then receiving great attention through the influence of Darwin. There is not space available for a full account of the scope of the above writings; all, even the shortest, were distinguished by those characteristics which their gifted author possessed ment, clarity of expression, and accuracy, Above all, he had the supreme ift of infinite patience: all views expressed were the result of much cautious deliberation; the hurried methods of the present day were not or him. And in this spirit he approached his classic work, The Manual d conclusions of a master mind. As for this flora, it stands out the equal of any of that brilliant series of floras dealing wi British Empire which Were conceived, and in and Hooker. part executed, by Bentham - Hand in hand with his botanical rank : edge—by what is probably the most extensive a extant illustrating Maori ethnology. A peculiarly important addition will be Cheeseman’s almost complete herbarium of the flowering- Plants and vascular eryptogams of the Dominion, which some short time м he presented to the Auckland Institu for all students of the flora. x YJ Obituary. xix To a scientific worker in a far-away corner of the earth honours come slowly. Nevertheless it would have been astonishing had Cheeseman's many claims for recognition been overlooked. For many years New Zea- land itself had nothing to offer. Even the University does not, honour itself, as, do other universities, by conferring degrees ged distinguished men. But Cheeseman was early elected a Fellow of the Linnean Societ of London, and, a little later, of the бге зема Society also. "But honours far more distinguished came to him—first of all, a Corresponding Member- ship of the Botanical Society of Edinburgh, and this year one of the highest science can offer, the Gold Linnean Medal of the Linnean Society, a dis- tinction open to zoologists and botanists throughout the world ; heal had he lived, he would almost certainly have been elected a Fellow of the Royal Society. Then the New Zealand Institute made him its President in 1911, which is the highest honour a scientific man can attain in the Dominion, and in 1918 he was awarded the Hector Memorial Medal and Prize for his botanical researches, and the succeeding year he was made an original Fellow of the New Zealand Institute. After all, the gaining of honours is far from being the crown of the gifted man of science : rather is it the admiration of those who best know his work, and, above all, the knowledge that such work is influencing his fellow-workers, old and young. It is indeed difficult to estimate how great has been the influence of Cheeseman upon botanical research in New Zealand. His works must perforce be in the hands of all pursuing studies concerned either with the flora or the vegetation, and must be consulted dail r wil this influence lessen with his lamented death; it will vastly increase. Happily, the great botanist lived to round off his life's work—the revised edition of his flora. How greatly do we botanists of this country, if I may speak for my friends and colleagues, rejoice that he had the satisfaction of finishing his task! How greatly do we deplore that he did not live to see his labours materialized, and to receive our acclamation ! L. COCKAYNE. CONTENTS. PAGES Кош, or Honour xxv-xxvii PRESIDENTIAL ADDRESS xxix-xxxi ANTHROPOLOGY. Maori a Basketry and Plaitwork : 2 Mats, Baskets, and Burden- carri: By Те Rangi Hiroa (Р. Н. Buck), D.S.O., M.D. 705-742 An нна = to Maori Music. By з аа C. Andersen .. .. 743-162 BOTANY. ' the Behaviour of certain New Zealand Arboreal Plants when gradually buried by River. Pama By C. E. es Head Masseur, Tourist Departs ment, Rotor ae 546—548 Morphological Notes on pe New аш Giant Kelp, Dei antarct (Chamisso). By E. M. Herriott, M.A., P Dee ien de Caster bury College 5 549-564 New oe of Flowering- as By P.H. Жек, F. L.S., F.Z. 8. Z.Inst., Curator of the Auckland Museum 565-569 fat ea = New Native P ome d D. Petrie, м. re Ph. D, F.N.Z.Ins . 569-572 Notes on pyas ud ребе, ву в. О. K. Hainaluty | 512—578 cro que fertilization « Wheat on a Large Scale. A F. W. Hilgendorf, D.Sc., F.N.Z.Ins 574-576 du: in i xu ey bad ijinit: Part 1—The Distribution of the Species in Westland, and their Growth-forms. By the Rev. J. E. Holloway, D.Sc., F.N.Z.Inst., Hutton Memorial vet A .. 577-618 The Uredinales, or Rust-fungi, of New Zealand: Part 1—Pucciniaceae, Tribe Pucoineae (containing uet ^um and Шеш of Seven не five Species). Ву С. Н. Cunningha 619-704 GEOLOGY. Palaeozoic and Mesozoic Seas in Australasia. By W. N. Benson, D.Sc., B.A., F.G.S., F.R.G.S., — of Geology, University of Otago .. 1-62 The Genus Glycymeris in the Tertiary = New Zealand. By J. Marwick, M.A., New Zealand Geological Surv ` 63-80 On the Discovery of the Liothyrella “М CHEN d fas a t Flum Ci Waitaki Valley. By ta erage James Park, Dean of d Faculty of Mining at Otago University 80-82 On bs Á— of с Oamaru Limestone and Waitaki eon: By Pralina k, n of the sigs чена of pce at Otago University s 82-87 On dii ене ^ we Contact between the Ngaparan Beds and the Underlying Bed-ro By Professor зьле Park, Dean of the е Faculty of Mining at ato University « 87-89 xxii Contents. Note on the Hanging Valleys of the Upper Rangitata Valley. Ву К. Speight, M.Sc., FG. S., ЕХ Z.Inst., Curator of the Canterbury Museum Some Remarks on New Zealand Sart Mae. with rgd sees of New Tertiary Species. By H. J. Finlay, M.Sc. Fossiliferous Limestone at ч Bay, zà H. J. Finlay, М. Se., d Е. Н. McDowall, M.Sc. : Early Tertiary Molluscan Pana of ive Zealand. By 1 P. Marshall, M. i D.Sc., F.N.Z.Inst., Hector and Hutton Medallist Some Tortiary ert ees Descriptions of New Species. By P. Marshall, M , F.N.Z.Inst., Hector and Hutton Medallist, and R. Murdoc The «unie of the m nus Lahillia in New Zealand. By P. rip M.A., D.Sc., F.N.Z.Inst., Hector and Hutton Medallist, and R. Murdoch The conside of Land Mollusea in a Recent Sea-beach deme By R. Murdoch and H. J. Finlay, M.Sc. . Water-conservation and Hawke's Bay Artesian oe. By H. Hill ZOOLOGY. Notes and Descriptions of New Zealand Lepidoptera. By са Байрон, F.E.S., Assistant Entomologist, Cawthron Institute, Nelson . A Study of the Venation of the New Zealand Species of Mic ee idae By E cinis Е.Е.8., Assistant — 8à Cawthron Institute, Descriptions of New Zealand оь. ву E. Meyrick: B.A., ERS. A sux of the Heros = Ee opeognatha, ES New еа Ву J. Tillyard, M.A., Sc.D. (Cantab.), D.Sc. (Sydney), C.M.Z.S., F.L.S., E ES. .; Entomologist and Chief of the Biological Department Cawthron Institute, Nelso The Stone-flies of New Zealand (Order ене) with Descriptions | of ve Genera J. Tilly and Species By R. ard, M.A., Se.D. (Cantab.), (Sy iv CZ... LS, F.ES.; Entom. mologist and Chief of = "Biological De partment, y pesca Institute, Bonon Descriptions of New Species and Varieties of Lacewings (Order Neuroptera idae Planipennia) from New Zealand, seri to preg Families Bero and See By К. J. Tillyard, M.A., Sc.D. (Cantab.), "DSc. (Sydney), C.M.Z.S., F.L.S., F.E.S.; Ento apre and Chief of the Biological Department, Cawthron Institute, Nelso Desoriptions of Two New Species of May-flies (Order PRSE fioi Ne w aland. By R. J. Tillyard, M.A., So.D. асышты PT (Sydney), С.М.2.8., FLS., F.ES.; Entomologist and Chief of the DM Department, Cawthron Insti tute, Nelso On some New Zealand Cave Orthoptera. = L. Chopard, D. Se. Some New Zealand Amphi N ISI a p о. 3. By Charles тере, М.А., D.Sc., Additions to the Fish F. кыш ы N Assistant Curator, AMEN M ad E Two Species of сеш (попере) а к а Archipelago. By ы — е gar-planters’ Experiment Station, Honolulu, Т.Н. Species of New Zealand Sees Hi omoptera) Ву Е. Mair, TN Sugar-planters' nes Lass Station, inira X. H. zi mp M ee (Ошм) of Ner Zeeland, By J. w. A Preliminary не of tke € Vanyderifiay. Tipulidae). Credis ot New Zeni Zealand (Anisopodidae, e Index of New Zealand Beetles. By G. V. зет F. Е. F. N. Z.Inat. and By L т. сиви, F.ZS., PAGES 90-98. 99-105 106-114 115-121 121-128 129-130 131-133 134-147 148-154 155-161 162-169 170-196 197-217 217-225 226-230 230-239 240-245 245-256. 251 258-259 260-264 265-352 353-399 Contents. Notes on the — habits and Ie че history of the Culicid oe fuscus Hut By H. B. Kirk, M.A., F.N.Z.Inst., Professor of Biology Victoria панн College, Wellington А А шеа to the Study of New Zealand Leaf- dicen EM Plant- ры (Cicadellidae and Fulgoroidea). Ву J. G. г» F.E.S., EE ниб. Department of Agriculture New vate of New ә» а eden. By "E G. Myers, F. ES, Biology vision, - рани t of Agricultu A Хек Tachinid Genus pen Two New ‘Specie, By David Miller, a, ent fom logist end for a аргу оп the Diptera Fauna of New Zeina : Part "a Family Empididae. By David Miller, Government Entomolo а ee The Leaf-mining Insects of New Zealand: Part III—Species the Genera дроту Баг: апа творе нна) AN "ву Morris №. Wat Notes on the Migra a s of MM Zealand, with боов of some Additional Species. By F. Stead Marine Littoral Plant and Animal бошан їп New Gud By W. В. B. Oliver, F.L.S., F.Z.S., Dominion Museum, Wellington E MISCELLANEOUS. New аас and other Bird-song: Further Notes. Ву Johannes С. Anderse Miramar d and i its е Ву Elsdon Best, F. х. " Inst. .. Solubility and Hydrolysis of Caleium Carbonate. By H. O. Askew, M. PROCEEDINGS. Annual Meeting of the Board of Governors Contributions to Publication Fund APPENDIX. New Zealand Institute Acts and Regulations Hutton Memorial Medal and Research Fund Hector Memorial Research Fund Regulations for administering the босай жы: Grant Carter Bequest ys New Zealand Litus diet ot Olé. е As Roll of Members 2% Serial Publications received Ы the Шыу of ihe Institute List of Institutions to which the Publications of the Institute are са INDEX OF AUTHORS .. : ке a HY xt GENERAL INDEX E xxiii PAGES 400-406 407-429 430-431 432-436 437-464. 465—489 490—495. 496—545. 791-796. 799-818 819-821 871-872 873-920. LIST OF PLATES. | PAGE | .. | NSIN MEDALLION .. e vH PO Wi EDWARDS Sen << Plates 27-36 J. HECTOR КЕ A ifs w | ... Миз, ma S. Percy Ѕмітн px КИЕ | Plate 37 C. A, EWEN .. ss 2.05 AI | Morris N. Warr eae Plates 3841 T. Е. CHEESEMAN м. УН | W. R. B. OrivER— | Plate 42 . J. Marwick— | | Plates 43-46 Plates 1-7 =e 4 * re 64 | Plates 47-50 К. бреюнт— С. E. Curistensen— Plates 8,9.. .. n 96 Plates 51-53 J. FrxLAY— Plate 10 .. s .. 100 | E M. Herrror Plates 54, 55 H. i and F. H. сма Ltd с Plate 5 : P. ча i n. зрә Plates 57-60 Plat (cc JA 1 Plates 61-68 Plate "ra x 2:2 20 | Plates 69—76 К. Murpocu and Н. J. FrNLAY— | G. Н. CUNNINGHAM— Platel7 .. ki = 180 | Plate77 .. | J. Tatyarp— | Те Rawer Нівол— Plate 18 . du об | Plates 78-81 Plate 19 e r+ 228 | Plate 82 -.; L. T. GRIFFIN— | E O Apm Plates 20-26 Us ee 256 Plates 83-85 NEW ZEALAND INSTITUTE. ROLL OF HONOUR SHOWING MEMBERS OF THE INSTITUTE WHO WERE ON ACTIVE SERVICE DURING THE WAR. Name. Available Details of Service. WELLINGTON PHILOSOPHICAL SOCIETY. E. H. Atkinson .. | Lieutenant, Royal Naval Volunteer Reserve. | C. M. Begg А Colonel, N.Z. Medical Corps 516GB, OMG: Died of sickness. Val. Blake a — NZ Engine oe “4 .. | Killed in action. F. K. Broadgate .. | Lieutena id .. | Killed in action P. W. Burbidge .. | вете err ‘Soot | наи А terbury Infantry. | L. J. Com % Seren йон, 36th Reinforcemen | У.С. Davies ne tal Sergeant-Major, Ist х, 7. Rifle о. W. Earnshaw... | Engineer ee -Commander, R.N. C.J. Freeman .. | N.Z. Rifle Brigade. C. Freyberg vs Lieutenant, West York (Prince of Wales's Own) J. G. B. Fulton .. Corporal, lOth Reinforcements. H. E. Girdlestone.. | Company Sergeant-Major, Wellington T | Killed in action. H. Hamilton .. | Sub-Lieutenant, Royal Naval Volunteer Rese C. G. Johnston Lieutenant, Ist N.Z. Rifle Brigade bá | Killed i in action G. W. King Lieutenant, N.Z. Tunnelling Company. E. Marsden Major Tees ), N.Z. Engineer .. | M.C.; mentioned in despatches J. M. Mason .. | Lieut.-Colonel, N.Z. Medical Corps D. McKenzie .. | Trooper, Wellington Moun ifles. H. M. Millar % Sergeant > Z. Engineers’ Divisional Signalling | Com W. L. Moore ve | | Captain, LN Z. Field Artillery P. .. | Mentioned in de- c T. D. M. Stout .. | Lieut.-Colonel, N.Z. Medical Corps .. R. M. Sunley | Corporal, Specialists. W. M. дов .. | Captain, N.Z. Medical Corps. H. S. Til .. | Sergeant, N.Z. Field Artillery. Н. Vickerman .. | Major, commanding N.Z. Tunnelling Company E 5.0., O.B.E. ; mentioned in | despatches. C. J. Westland .. | Corporal, N.Z. Machine Gun Corps. | AUCKLAND INSTITUTE. F. L. Armitage .. | Captain, N.Z. Medical Corps. | S. B. Bowyer .. | Gunner, ; N.Z. Field Artillery. | R. Briffault .. | Captain, N.Z. Medical Corps. | Р. Н. Buck (Te | Major, N.Z. Medical Corps de +» 0.8.0. Rangi Hiroa) | S. Cory-Wright .. gel N.Z. Engineers, Divisional Intelligence | M.C. ffice 4 W. J. Crompton .. | 186 Bat ttalion, Otago Regiment. . N. В. Downard | Lieutenant, N.Z. Rifle Brigade. G. Fenwick .. | Captain, N.Z. Medical Corps. xxvi Roll of Honour. Rott or Honour—continued. а Хате. Available Details of Service. AUCKLAND INSTITUTE—continued, R. H. Gunson г ieutenant, sas Boat Res G. Н. Hansard .. | Sergeant Major, 33rd Ma line Cie Corps. D. Holderness .. | Lieutenant, N. 7. Rope R. T. Inglis Captain, N.Z. Medical Corps. J. C. Johnson Captain, N.Z. Medica 1 Corps. C. W. Leys .. | Lieutenant, Royal Naval Volunteer Reserve. К. Mackenzie .. | Captain, N.Z. Medical Corps. Н. A. E. Milnes .. | Lieutenant, Auckland Infantry Regiment .. | Killed in action. W. R. B. Oliver .. | Corporal, Canterbury Infantry G. Owen Es gtr N.Z. Rifle Brigade and N.Z. Engi- A. C. Purchas о, ыз, Z. Medical Сог E. Robe Captain, N.Z. Medical Corps C. B. Rossiter .. | Captain, N.Z. Medical Corps ; T. C. Savage .. | Captain, N.Z. Medical Corps Died of sickness. Rev. D. Scott .. Chaplains Department, N.Z. Expeditionary H. L. Wade Captain Auckland Mounted Rifles. Т F. Whittome — .. | Corporal, N.Z. Rifle Brigade. | z PHILOSOPHICAL INSTITUTE OF CANTERBURY. H. Acland : | Colonel, N.Z. Medical Corps. G. E. Archey | Captain , N.Z. Field Artillery. J. W. Bird i § cant- Major, Instructional Staff. | F. J. Borrie pene N.Z. Medical Corps. | F. M. Corkill | Ca | William | ( Roten. Canterbury Mounted Rifles. | A. А. Dorrien-Smith | Major. | A. Fairbairn . | Captain. H. D. Ferra . | Trooper, N.Z. Mounted Rifles. C. E. Foweraker .. | Corporal, N.Z. Medical Corps. F. G. Gibson Captain, N.Z. Medical Corps. J. Guthri ti] OR Z. Medical Corps. ton aptain, N.Z. Medical Pulse b. S. Jennings .. | Captain, Otago Regim : .. | Killed in action. H. Lang i. г 2nd Licofenant, N.Z. Rit Brigade .. | Killed in action. Kidson .. | Captain, Royal En nginee MacIndoe .. | Signaller, Ого Infantry Brigade E .. | Killed in action. Mm (llf ry Regime . | Killed in action. S. 0 .. | Sergeant, oen Instructio nal Staff. M rters Гү теч . Rowe Ps Serg n der, Headqua ta Rhodes Colonel, Red Cross Commissioner. PMMHOPP Raver аы. "nd а 39 HER R ugit .. Captain, N.Z. Medical OTAGO INSTITUTE. 8, | .. | Captain, N.Z. Medical Corps. R. Buddl is я ini ^ Cras uddie Sur And. " laser Б =н a л Bi шр Cainer. | Mentioned in de- . E Lieut.-Colonel, N.Z. Medical Corps С, мое Lieut.-Colonel, N.Z. Medical po vll — Sergeant, N.Z. Medical orps. Sergeant, N.Z. ru rdi Force МИ. Roll of Honour. XXVil Кош, or Honour—continued. Name. Available Details of Service. Отлао InstiruTE—continued. ; E. J. O'Neill Lieut.-Colonel, N.Z. Medical Corps . C.M.G., D.S.O. T. R. Overton ieutenant, Pio H. P. Pickerill Lieut.-Colonel, N.Z. Medical Corps O.B.E. R. Price Major, Otago Infant Killed in action. E. F. Roberts Captain, Royal Еп, S. G. Sandle Major, N.Z. Expeditionary Force F. H. Statham Major, Otago Infantry Killed in action. W. D. Stewart Lieutenant, Otago Infantry. W. A. Thomson achine Gun Corps. R. N. Vanes Lieutenant, N.Z. Expeditionary Force D. B. Waters aptain, N.Z. миа ‹ H. Е. Н. Whitcombe | Gunner, N.Z. Field Arti — PHILOSOPHICAL SOCIETY. E. C. Barnett Captain, N.Z. Medical Corps. D. H. B. Bett quce N.Z. Medical Corps A. A. Martin Major, N.Z. Medical C Killed in action. J. Murra .. | Lieutenant, Auckland ge al H. D. Skinner | Private, Otago Infantry “п D.C.M. W. R. Stowe . | Major, N.Z. Medical Corps. Hawke’s Bay PHILOSOPHICAL INSTITUTE. H. F. Bernau | Captain, N.Z. Medical Corps. | J. P. D. Leah | Major, N. = Medical Corps. | Е. Е. Northeroft . поч st Reinforcements. E. G. Whee ral, Wellington Regiment. | GT. Wi Tesi A Wellington Mounted Rifles ! Died of sickness. NELSON INSTITUTE. F. A. Bett . [ Captain, N.Z. Medical Corps. Morris N. Watt .. WANGANUI PHILOSOPHICAL SOCIETY. Corporal, N.Z. Medical Corps. | | —tThe roll is as complete as it has been found possible to make it. The Nor Editor oud be glad to be notified of any omissions or necessary amendments PRESIDENTIAL ADDRESS. Tut following is the presidential address delivered before the New Zealand Institute on the 31st January, 1922, at Wellington, by Thomas Hill Easter- field, M.A., Ph.D., F.LC., F.N.Z.Inst., Director of the Cawthron Institute of Scientific Research, and Emeritus Professor in Victoria University College :— ! In my presidential address last year I spoke to the general public on some aspects of scientific research, and I outlined certain schemes whereby research might be forwarded for the intellectual and scientific advancement of our country. To-day I address the Board of Governors only, and I know it is needless to impress upon them the importance of scientific investigation, for the members of this Board have an honourable record of published investigations, and to my certain knowledge are anxious to advance the cause and the progress of scientific research. Nevertheless, I feel that greater co-operation is needed than exists at present amongst New Zealand men of science in the effort made on behalf of research. This want has been felt in other countries; and the United assistance, and it would certainly appear that, owing to the changed financial situation, the time has come for some complete change of policy in New ealand. Great as is the value of the contributions to science made by those who are bearing the whole cost of their investigations, it must be recognized that the number of those who are in a position to do work in this manner is limited. Moreover, in the case of some of the sciences, the apparatus and material required are of such an expensive nature that few amateurs can afford to supply the equipment with which such work can be carried out efficiently. The work, however, must be done, and we as an Institute shall be lacking in our sense of duty to the country in which we live if we do not exert great efforts in order that the difficulties may be overcome. It is worth while considering whether the Councils of the societies affiliated to the New Zealand Institute should not be circularized and asked to suggest methods whereby the research spirit may be fostered in their own districts, so that greater attention may be given to investiga- tion in pure and applied science throughout the Dominion. It must be admitted that we have not yet educated the public of New Zealand to the point of recognizing that national progress is largely dependent upon the continuous application of scientific discovery to technical problems, and that the development of technical science depends directly upon discovery in the realms of chemistry, physics, and biology. Xxx Presidential Address I regret to inform you that the research grant, which last year Cabinet had raised from £250 to £2,000, has been brought down to £400, and that it is possible that no new grants will be made during the coming year. ; Financial difficulty is also facing the Institute in other directions. Those who have made a careful study of the balance-sheets supplied by our Treasurer will have noticed that our liabilities are £678 in excess of our available assets, notwithstanding that the statutory grant was last year increased under the New Zealand Institute Amendment Act from £500 to nearly £2 in 1921. In view of the financial position, I have taken upon myself the very grave responsibility of overriding a decision of the Standing Committee, arrived at before the printer’s account had been received, to the effect that the printing of certain papers should be proceeded with at once, and have instructed the Hon. Editor to hold up the work until a resolution of this meeting can be arrived at. Institute, however, is different from that of any other learned society with which I am acquainted, in that its members are the members of the Australian States, for the members of these bodies pay their subscription direct to the society, which is thus enabled to finance its publications. _ 16 would seem that there are several methods which might be adopted in order to meet the present financial situation :— _ (1.) The Institute might decide to cease all publication until the general situation improves. This would be a most drastic action, and one which I should personally oppose. Apart from the fact that it is almost unthinkable t p after fifty-two years of consecutive publication, it is very doubtful (3.) Ust tions might be reduced largely, In the case of some classes cours no harm; in other cases it woul rest. Few biologists would value es of plant or animal without carefully produced Presidential Address. хххі recently been adopted by at least one London society. It is, however, hard upon the investigators, and would be particularly hard upon the younger members of our Institute, workers who are seldom in receipt of a salary which provides more than a bare subsistence. (5.) The levy on the local societies might be raised to 10s. per copy of the Transactions. The volume is certainly worth this sum. (6.) The levy on the societies might be dropped altogether and the volume supplied only to those members who desired it, a sum being charged which would pay for the cost of production. I fear that the introduction of this method at the present time of general stringency might increase rather than diminish our financial difficulties. contributed by younger members. he above suggestions I commend to the earnest attention of the Board of Governors, feeling sure that their deliberative wisdom will enable the Institute to escape from a situation which, though embarrassing, is certainly not to be regarded as desperate. THANSAUCIION 5. TRANSACTIONS or THE NEW ZEALAND INSTITUTE. Arr. ].—Palaeozoic and Mesozoic Seas in Australasia. By W. М. Benson, D.Sc., B.A., F.G.S., F.R.G.S., Professor of Geology, University of "Otago. [Read before the Otago Institute, 8th November, 1921, received RA T 20th December, 1921; issued separately, Ist February, 19 CONTENTS. Page The Stratigraphic his Structural Relationships of Australia and New Zealand: an cal S. The Tecto nic ie Ro не of Australasia and Anta The deseri of Detailed See > anilo of Australasian Geological Form The Geological History of Australasia ae 10 oe E M Ir Cambria. is ap we Age 20 Lil анана? a ae am {% ‚^ a xs E E) Silurian vee x H^ к ss TS iu 2:009 Devonian os А, ae oris E x "m 7 20 Carbonifer с эр Уе de un i. om ** Permo- Carboniferous ” or Permian + vs v nie ge Triassic с i5 2 id eee nd Jurassic si x I (S АЙ) Late Jurmeio, Lower and Middle Cretaceous A ba E go A Upper Cretac p ;. D Post-Cretaceous 52 Acknowledgments Addendum ee D. eo = Es zx Tm List of cy dec ER cited a © = к. 2d с: БА THE STRATIGRAPHIC AND STRUCTURAL RELATIONSHIPS OF degenen AND New ZEALAND: AN HISTORICAL SKETC More than forty years ago Hector (1879) delivered in ayda an address on the “ Geological Formations of New Zealand compared with those of Australia,” which was used by Suess (1888) in his comparison of the relation of the eastern part of South America to the Andean zone on the one side of the Pacific with that of western Australia to eastern Australia and New Zealand on the other. he former unity’ of these two last regions had already been indicated in Neumayr’s (1883) chart of the 1—Trans. 2 * Transactions. Jurassic world, in which, in place of the Tasman Sea, a restrieted south- ward opening, “ Queensland Gulf," lay between the continental mass of Australia and a long promontory stretching from New Guinea through New Caledonia and New Zealand, where is now a somewhat elevated region of the ocean-floor. This feature has characterized most of the later palaeogeographic maps of Australasia drawn at various periods by David (1893), Koken (1893-1907), Frech (1897-1902), Lapparent (1900-6), Arldt (1907), Hedley (1909), Haug (1911), Schuchert (1916), but is not present in those of Lemoine (1906), while Walkom (1918) recognizes the presence of the gulf in Triassic but not in Jurassic times.* As a geologist trained in Australia, the writer, when settling in New Zealand, was naturally attracted to the problem Hector set himself, and especially towards its palaeogeographic aspect, and he has attempted in the sequel to summarize once more our modern knowledge of the broader features of Australasian stratigraphy. .As Walkom (1918) has clearly indicated, * the palaeogeography of the Australasian region involves а consideration of the structure of the western Pacific region ” ; and we shall therefore commence the discussion by giving a brief résumé of the con- ceptions that have been advanced concerning this broader problem in whole or in part. Basing his opinions on sections drawn through Canterbury and West- land by von Haast, and through Otago by Hector, Hochstetter (1867) stated that “ only the eastern half of a complete mountain chain has been preserved [in New Zealand], while the western half is buried in the depths of the main.” Hutton (1875) suggested that the Otago region in Devonian times was depressed beneath the sea, and emerged again in Permian times, when New Zealand formed a very subordinate part of a large continent which stretched far to the northward. Subsidence of all but the southern part followed, succeeded by a slight elevation, deeper subsidence, and this again by the great Alpine folding, believed by Hutton to have occurred in the Middle Jurassic times. This was part of a large move- ment which probably resulted in the upheaval of an Antarctic continent extending to South America, as shown by the fact that all the formations later than this upheaval contain fossils identical or closely connected wit those of Patagonia and Chile. Subsidence followed, New Zealand was reduced to a chain of islands, and has since remained isolated from any large continental area. Hector’s (1879) correlation of i : the geological formations of Australia e New Zealand is a close approximation to modern conclusions, as mà seen from the accompanying table. Hector held that New Zealand ИИИ А ж Am е ; whole or Pes m geographic maps or summaries dealing with Australia as 4 1912), Basedow (1909), Gregory. (1910), Da formations are those of Jensen pans "aide: vid m .. 1913), Süssmilch (1919), Andrews (1916), Benson Чолу нани — rtm mend Benson.—Palaeozore and Mesozoic Seas in Australasia. "UVIOIAODpA() 49A O'T **BLIOPOTA 'sojujs snoroptin y "изип 49A 0T “ивы пуу 1odd д BIUBUISET, “әлің uopiop 'M'S'N ‘род SEVA "иви E S'N 's[oqujog рие 160019, ) “UvLINfig рие URIUOAAT APP "WS'N *eopiq тыту *'$no1opuoq IR) TAMOT *$n019jTu0q19/)-0 ULI9q snoJopuoqie;) d9AMo'T "snolojt -ползу-ошдәд 4o пешә] pue "uerueq (5) otssuLrLT, 49A O0'T ‘олец, aaddq 1o onov (4) os anf: JOMOT “OISSBAN(? TOMO" 4) snooo?jo1) APPIN 10 PT "wopvupuiojop-93y VIPOW "M’S'N 'sueqdeyg Hod puv[suoong) ‘ішу этиш r ‘Heq H UVIOTAOp4() 19M OT с ннен итш иеше Ur ы ducite на uenis ** WRIUOAA(T 12M0 ѕполәи -uoqae)-ouleg 10 п®їшчдә, SNOIOFTUOGARD ләм 0q19;) d l 9 » '* seyeps onipogd var) аа JOAN чоў _——————— ++ uojjooy esci ti Mia tiit ET ACTA ONT, ‘ow “вәчоувәшц ттн ee ЕЕЕ__——_— sonsvour-[V00 9p]8VOMON. E ' otseeu у, teddy ou? jo әве Uvrurioq t пуур sedia ac IEEE OBEN CUN MM Lc. 1 "МЕМ ‘Seles Алп * (ossen, ләй) |? DISSE ned pue воле j-sexavH pue ajada *' omui) рив OLION |J -ME 1040] puv овцу f 1111230) имоиҳо id ** орет] uomseg PUY SUT RD re VIUVUISE, fsginswour- [woo = uro[esniof 'WSN assen f o[pprjy ов *so1nsvour-[v00 19A T? әдә) “пешоцуи, pue uvruoooeN | owseinf oppi pue ләй Buey sopu “0:9 ara чт Ajqsoq (ouoo05[) (snoooez01) puesuooip) JOMOT ләй“) uwruouog рим urn | pus Каеуләугоәотдәдо) LOMO'T вувувупд pue запеву (воо эво) 389A OSTE) Soinseour-]eoo pue “оз *puwsuoo18 *ouojsour[ Linury *10~09 H " Surp1ooov mim 184909 "vrrviridisna v ‘6181 NI яолояң дя QuIS4D5D08 ANVIVUZ AYN ANV VIIVaLsAy "uonmveururjop-o8y ULI POW 10309 Aq pousisse өйү "UNVIVAZ MAN NI SNOLLVAHO, 1ү01001099) ЯО SNOLLVT4HHO;) JO ATAVY, 4 Transactions. and the Chatham Islands were the remnants of a large continent, formerly extending far to the east, which must have been connected in the Temperate Zone with South America, but there was no evidence of its having been connected with Australia during Tertiary times. The Jurassic flora he recognized as occurring also in Australia, while Deslongchamps (1864) ad shown that the Triassic fauna of New Zealand had representatives in that of New Caledonia. The “ Lower Carboniferous” beds appear * to have been common to Australia and New Zealand, and to have been deposited in both areas under the same physical conditions, and within a common biological province” (Hector). Haast (1879) repeated Hoch- stetter’s conception of the Southern Alps, held that the sedimentary rocks to the east of the gneissic core of this range were derived in Palaeozoic times from a large continent lying east of New Zealand, of which the Chatham Islands form a remnant, and agreed that New Zealand became a string of islands in Cretaceous and Tertiary times. Hector (1885), however, dissented from Hochstetter’s conception of the Southern Alps, and mapped them as synclinal, with a gneissic western margin, followe by Permian rocks on either side of a Mesozoic central zone. Hutton (1885) also concurred with Hochstetter’s interpretation of the structure of the New Zealand Alps, but, comparing the manganese-bearing bands in the Maitai system with modern deep-sea deposits, he was led to infer very deep depression during the Carboniferous period. He further noted the resemblance between the graptolites of Australia and New Zealand. Suess (1888) summarized in the following order the sequence of rock- formations observed in passing eastward from the desert of Western Aus- tralia, the depressed zone of Lake Eyre and Spencer Gulf, the Flinders, Mount Lofty, Barrier, and Grey Ranges, and the alternating members of the Australian cordillera. For a long distance the farther extension of the continent is now concealed by the sea, but beyond it, in New Zealand, the Mesozoic series is completed, and with this completion we reach the great ranges and at the same time a region of much more recent folding. “АП the chains from the Flinders to the Australian cordillera, including the longer of the two syntactic mountain-segments of New Zealand, must equally be regarded as constructed on a common plan.” _ Stephens (1889), from an Australian standpoint, made a second interest- ing correlation of Australian and New Zealand strata. The Australian here, the greywacke and fossiliferous Maitai limestone are grouped with he Permo-Carboniferous coal-measures and marine beds in Australia. — presence of Glossopteris, both of ic are no longer accepted. The : ; ector rightly considered Triassic, dud. ге nA = e Upper Clarence beds, wish di now known to be Rha etic’ Wiana а SAC dd Jurassie" Mataura series is grouped with the that the Tasman Sea EM e Sydney district. Stephens further held tralia and New Fait aaa : hroughout these epochs, that eastern Aus- bad ey es id were independent groups of islands, both united с | Dy emergence during Permo-Carboniferous times, and Benson.—-Palaeozoic and Mesozoic Seas in Australasia. 5 connected with Asia by temporary land-bridges during Lower Triassic times (“ when Hatteria entered New Zealand "'). Professor David (1893) further summarized the pre-Mesozoic geological history of Australasia. He inferred the proximity of land in various regions and periods, but did not offer palaeogeographic charts. Thus he stated that the land which must have supplied the detritus of which the New Zealand Silurian rocks were formed must have existed near the present west coast, but has since been removed denudation. Portion of it may possibly be represented by the crystalline schists of Otago, but it may be doubted whether there was any land at all within the present area of New Zealand before the commencement of the Mesozoic period, when, for the first time, coarse conglomerates and a land-flora made their appearance. During the next decade evidence was accumulating which indicated the former extension of Australia to the east and south of its present limits. The former eastward extension, originally deduced by Clarke (1878) from the abundance of the epicontinental Mesozoic deposits and absence of Tertiary marine rocks near the present eastern shore-line, was confirmed by the discovery that there frequently occurs current-bedding in the Newcastle coal-measures, which indicates their deposition by currents flowing towards the west (see David, 19074). The southward extension, which had been first suggested by Tate's (1879) announcement that the glacial beds near Adelaide contained erratics which appeared to have come from the south, was confirmed when in 1895 it was shown that the most abundant of the recognizable types were derived from near the mouth of the Murray River, fifty miles to the south of their present position. At the same time the glaciation was proved to be pre-Miocene, and was referred to the Cretaceous by Brown, and to the Permo-Carboniferous by Howchin obtained that the supposedly contemporaneous ice-sheet in Victoria and Tasmania moved to the north-north-east, and that a large elevated land area must have existed to the south-west of the present limits of the three States mentioned. Hutton (1900, pp. 180-81) again summarized the geological history of New Zealand, in effect saying that of the early Palaeozoic era in this region we know but little; but towards the close of the Devonian period land certainly existed, though its outlines are uncertain. It subsided beneath the sea during Carboniferous times, but subsequently was raised so that in Permian times, after folding had taken place, New Zealand lay near the shore of a continent stretching away towards Tasmania and Australia, to which perhaps it was joined. He concurred with Stephens (1889) in recognizing the fossils of the Maitai series as of Australian Permo-Carboniferous types. Middle Jurassic orogeny was believed by him to have been accompanied by the subsidence of the crust with the formation of the Tasman Sea, though leaving a broad strip oí land west of the Southern Alps, which extended northwards to New Caledonia and New Guinea. This connection he believed was broken in the Upper Cretaceous movement of crust-subsidence, and was not renewed in the early Tertiary emergence, with the discussion of which this paper is not concerned. Lemoine (1906), discussing the former limits of Gondwanaland, con- sidered that it extended across Australia and the Tasman Sea, and that along its northern and eastern shores there migrated the Tethyan forms 6 Transactions. from India, through the Malayan region, to New Guinea, New Caledonia, and New Zealand. The gneissic rocks of western Otago were considered as being a fragment of this old and largely subsided continent. Fraser and Adams (1907), while remarking on the difficulty of determining whether the sediment forming the Mesozoic greywackes of New Zealand was derived from the west or east, inclined to the latter alternative (at least for the Coromandel region), but Morgan (1908) supported the former view (as regards the West Coast region), citing, but not committing him- self to, Lemoine’s opinion. He was opposed, however, to the hypothesis of the anticlinal structure of the Southern Alps, declaring that the rocks forming the western slopes are portions of an older chain striking to the north-west, and separated by overthrust faults and a zone of granitic intrusions from the newer Alpine chain. Arldt (1907, p. 456) recognized the greater part of Australia as a portion of an Archaean massif, a fragment of Gondwanaland, adding that this “appears from the Carboniferous to the beginning of the Tertiary to have had an important extension to the east, even to the margin of the inner island are of Melanesia, including the Fiji Islands, Tonga Islands, and New Zealand. Obviously these regions were repeatedly flooded over by the sea. On the other hand, the sea had very early appeared thrusting in between Tasmania and New Zealand, existing here during the Jurassic, so island ares about Australia. The first comprised New Guinea, New Caledonia, and North Auckland Peninsula, with the New Hebrides, Solo- mons, and Loyalty Islands as an outer zone. The second arc was a group of coral atolls running north-westwards from Fiji (a rather unsatisfactory grouping); and the third arc ran from Tonga, through the Kermadec Islands, into New Zealand. “ The arcs . seem to whirl towards the bifurcation of northern New Zealand. . . . At the same time there are many doubtful points. First among these is the question whether the Australian cordillera along the recent down-break on the eastern coast may Tecognized as an inner arc. If so, the whole structure would be con- centric about an ancient vertex [or nucleus]. But the manner in which the cordillera. 1s continued across Torres Strait scarcely favours that view. [Various conjectures may be made] but in the hope of solving oblems we create new ones." he section across the former through orthern Argentine as did Suess, claiming as the | Marshall (1909) urged the close relationshi : p between Tonga and the North Island of New Zealand, drawing attention to the sub- marine ridge connecting them (Suess’s third i egard i Ф 5 м umt esite-lavas and tuffs It 3 е are closely analogous to those of New ede unm m Benson.— Palaeozoic and Mesozoic Seas in Australasia. 7 paper, and in a later one by Marshall (1912). The investigations of ge (1909) and Marshall (1909) in the subantarctic islands adjacent o New Zealand had led to the discovery of continental (plutonic) rocks hse suggesting a former extension of New Zealand to these islands, which. may have been continued till it united with Antarctica (itself a fractured continent), as the investigations of biologists have indicat Park (1910) supported Lemoine's view of the relation of New Zealand to Gondwanaland, declaring that “the Palaeozoic areas in Nelson, Westland, and Otago are merely the remnants of the fringe of the submerged Indo- African continent which appears to have existed up till near the close of the Secondary period." Professor Gregory (1910) n equally eine concerning t the former unity of Australia and New Zealand. “ Australia," he said, "is essentially a fragment of a great rne -land of гатан rocks. It consists in the main of an Archaean coign which still occupies nearly the whole of the western half of the continent, outcrops in north- eastern Queensland, forms the foundation of southern New South Wales, were doubtless once continuous, but they have become separated by the foundering of the Coral Sea, and of a band from the Gulf of Carpentaria to the lower basin of the Murray. The breaking-up ke the old Archaean foundation began in Cambrian and Ordovician tim These remarks prefaced a short outline of the асат evolution of Australia. It might be remarked, however, that the Archaean age of the basement schists (to which might have been added those of New Guinea, the Louisades, and New Caledonia) cannot be considered as proved in all cases. Thus Browne (1914) has adduced evidence of the Ordovician age of the schists in southern New South Wales, and a like age for those of western New Zealand seems not improbable (cf. Benson, 1921). Marshall (1911) pointed out that the comparison of the lithology of the Mesozoie rocks on the east and west of New Zealand did not give any clear indication of the dreio from which the detritus forming them had been derived. He recognized the New Zealand- Tonga line as the boundary of the south-western Pacific, but, omitting all of Suess’s second Australian arc except Fiji—in which Woolnough (1903, 1907) had found a continental basement of granite and slates with à north-north-east strike drew the continuation of the margin of the Pacific along the outer zone of Suess’s first Australian arc from the New Hebrides to New Britain, a palaeogeographic scheme for which there is zoogeographical support (Hopes 1899). In the same year Professor David (1911) discussed the structure of Australia and its gradual growth. His map illustrates a remarkable bending of the trend-lines about a Western Australian nucleus, being meridional in the south-eastern region, bending to the north-north- west in the centre of New South Wales, to the north-west in Queensland, and to the west in the ranges of central Australia and the Northen Territory. This simple scheme is complicated by the presence of a secondary nucleus or cross-folding in the Kimberley region (W.A.), and by a north-easterly branch of the Mo om in South Australia, which strikes through western New South and Queensland into the central portion of the coastal ranges of Quéenilatid near Townsville. Briefly summarizing the geography of the past, he drew attention to the collapse and subsidence in early Mesozoic times of the collecting-ground of the great Permo-Carboniferous glaciers - 8 Transactions. south-west of "Tasmania, Victoria, and South Australia, and to the foundering of the eastern extension of Queensland in late Tertiary times, when “nearly the whole of the eastern watershed of the old Divide to the east of Cairns was sunk beneath the sea." He recognized that New Guinea was a lately folded region, where Cretaceous and even Tertiary rocks are highly disturbed, and that even in Australia tectonic movements are newer as New Guinea is approached. There is need for “а vastly extended series of observations both on land and sea before any satis- factory theory can be advanced as to the plan upon which this island- continent has been built.” Jensen (1911), acknowledging his indebtedness to Professor David's teaching and discussions, concluded that the Australian “ continent moved in an easterly direction throughout the Palaeozoic, and by the end of the He held that the dominant folding-foree came in each period from the sea towards the land. Professor David (1914) again summarized the geology of Australia, and also that of Papua, and drew attention (David, 19144) to the eastward movement of the basins of deposition of sediments in New South Wales, and of the axes of folding and of plutonic intrusions, in the three main Palaeozoic epochs of orogeny recognized by him. Morgan (1915) was quite uncertain of the position of the land to which New Zealand formed the foreshore or continental shelf in Meso- zoic times. As a result of Arber’s declaration concerning the absence of Glossopteris from New Zealand he “ regretfully dismissed " the idea that | the continent lay to the west and was indeed the margin of Gondwana- land, though in Seward's (1914) opinion it was not yet necessary to do so. (See footnote, p. 41. Andrews (1916), while recognizing the easterly growth of Australia from the western gneissic massif (obviously only the eastern extremity of a still larger continental area), urged that the successive marginal foldings were due to the action of centrifugally (not centripetally) directed forces. His view is thus more or less in accordance with Suess's conception of the ee wa , New Caledonia, and New Zealand c" s first Australian arc) should be considered as distinct units, New In regard to this, reference sh * Phe questio OE ould be made to Oldham's (1921) comment : AUTEUR n of е tion d Neh the pressure came to which movement is waves ad : hic we find re reference to earth- Ouid ds wod" н orco ipee In the conceptions put forward by овов | nin hy the mere бому applicable term "алдас "dh tines, "I ma pon ; to accept the common usa to the cause whic tsn ge, incorrect though it be, when be ma he Em acements are due, so long as the la а; divergence of statement in the views of Da "a n Me em go far to reconcile Brnson.—Palaeozoic and Mesozoic Seas in Australasia. 9 confluent at the southern and western extremities. The knot itself would appear to arise as-the result of the mutual interference of the Tethyan and Pacific controls. Schuchert (1916) declared that eastern Australia and New Zealand were separate geosynclines in Palaeozoic times, and that the latter remained such during Mesozoic, and (he unexpectedly adds) during Cainozoic times also. The area now occupied by the Tasman Sea Zealand having been first sundered during Triassic times, when, by a curious error, he believes the last two regions to have been entirely land areas. Wilekens (1917), acutely summarizing many contradictory accounts, suggested a comparison between the structure of the European Alps and those of New Zealand, which appeared to him as probably asymmetric and thrust to the south-west and west against the gneissic massifs of western Southland and Fiordland, and to the north-west against a foreland of folded Palaeozoie rocks, now mostly foundered beneath the Tasman Sea, except for the area forming the mountains of the north-western portion of the structure of the Southern Alps. A somewhat similar hypothesis was independently formulated by the writer (Benson, 1921). lkom's (1918) careful discussion concerns Mesozoic times chiefly. He conceives that at the commencement of this period a single undivided continental mass extended throughout Australasia, New Guinea, and Fiji, and that its fragmentation with permanent enlargement of the Pacific Ocean commenced at this time. Epicontinental Triassic rocks were deposited in New Zealand and New Caledonia, and a temporary northward extension of the southern orean formed a gulf extending towards Sydney. The sea apparently are considered to have been somewhat later. This wide extent of land, which is assumed to have extended east of the present coast-line of Australia, has recently been named “ Tasmantis," the term being defined — as indicating “those portions of New South Wales and Queensland cut off from the remaining parts of Australia during the Carboniferous period [which] were parts of a separate land area which existed to the east of the Australian continent at least as far back as the beginning of the Devonian the close of the Carboniferous period" (David and Siissmilch, 1919). In this conception of an important geosyncline separating, until the close of Carboniferous times, the Australian nucleus from that now subsided beneath the Tasman Sea we have a marked accord with Schuchert's (1916) suggestions. 10 Transactions. Bartrum (1920) called attention to the widespread occurrence of pebbles of gneissic and plutonic rocks in the Mesozoic and later rocks of the North Island of New Zealand, and supported Park’s (1893) inference that an ancient complex of plutonic and metamorphic rocks formed a land-mass near this region during Mesozoic times. The comparison of the work ‚ supported the suggestion that the remarkable community of characters of the successive Mesozoic marine faunas of New Zealand and New Caledonia was such as to indicate that these regions were then part of a continuous coast-line. Farther north the former continuity of the islands of the Louisades Archipelago with the central chain of Papua as indicated by Clarke (1878) is confirmed by Stanley's (1921) researches. Tug Tectonic RELATIONSHIPS OF AUSTRALASIA AND ANTARCTICA. We may here pass on to consider the geological hypotheses of a former connection between Australasia and Antarctica, but omit, as in the above, the discussion of zoogeographic and phytogeographic evidence. The pro- blem has been treated briefly by Mawson (1911) and Gregory (1912), and in more detail by David (19148). All the region of South Victoria Land extending as far as Adelie Land appears to consist of an ancient gneissic or metamorphic complex, with some early Palaeozoic beds overlain by hori- zontally bedded Upper Palaeozoic and possibly Mesozoic sandstones invaded y immense sills of dolerite. The structure is thus somewhat analogous with the structure of Tasmania on the one hand, and of Brazil on the other. The Andean zone of folded mountains, with its eastern continental being perhaps part of the same system as the Te Anau line of fracture. of rocks with those of the American And King Edward VII Land as а 1 i PE ENEMY Benson._-Palaeozoic and Mesozoic Seas in Australasia. 11 mighty ranges of South Victoria Land. ^" The dynamics which have effected the land-building of Tasmania and eastern Australia correspond o м Ф n + e! e > — Ne 4 + m + Е e un Ф = m e Ф Ф mn © 2 = Ф |=) о Ф [77 = un = H e 3 -— =] — Ф £5 = LI continuation of the “ Antarctandes” of Graham's Land — the formerly views may be reconciled. While, with Gregory and Wilckens, we may consider as most probable the continuation of the axis of late Mesozoic the trough of Ross Sea. This correlation is the more easy if we accept Henderson’s (1917) view that the movements of block-faulting occurred at intervals during the Cainozoic period in New Zealand, which is not in any way incompatible with the trend of physiographic evidence in eastern Australia, as interpreted by Andrews (1910). Professor David’s (19148) map of the trend-lines of the circumpolar region supports the suggestion that we may take the zone of the Otago schists and New Zealand Alps as representing the continuation from King Edward VII Land of the circumpacific folds. Such a zone would leave would not, therefore, attach much significance to Hector’s (1870) com- parison of the mica-schists of Chatham Islands and Central Otago. An z hes т compares this rock with that of Auckland Island, and believes that these two i \ 12 Transactions. Park (1910) has suggested that the Chatham Island ridge “ is the eastern wing of the great synclinal in the trough of which lie the folded Mesozoic rocks that compose the Alpine divide and the parallel ranges of the Dominion lying to the eastward.” The importance of the fracture-lines traversing and often limiting the New Zealand area, and their general obliquity to the axes of the Cretaceous folding, have been emphasized by seismic activity in the Tongan trench and in the eastern suboceanic slopes of New Zealand (Hogben, 1914) may afford evidence of the continuance at the present day of the conditions that led to the formation of the south- Western margin of the Pacific. Marshall’s (1911) outline of the margin would bring into accordance with this the seismic activit у Hebrides indicated by the Rev. E. Е. Pigot’s seismometric investigations at Riverview, Sydney. urning to the palaeontological evidence of the relationships of Austral- asia through the Antarctic with South America, we note that Taylor (1914) has recognized close allies of South Australian species of Archaeo- cyathinae in a limestone from South Victoria Land, and Gordon (1920) America, but this was emphasized in the papers е ), the latter declaring that South ona,» Antarctica, and New Zealand formed at that period part of the continuous southern coast of the Pacific Ocean. : М окуу. ете note without discussion Wegener’s (1922) remarkable ypothesis. i | D the C i Ant- arctica, South аса ere € Carboniferous world he shows : The general westward zuo : | ing features . . . Since the emen mee e = greater influence for smaller masses or large, these ied 188868 Will be left behind in the general ent. lence comes th ; 1 ago completed, of th aT "4. ņ е separation, long Em не; of the former Australian coastal chain which now forms New 3: qme RC ry p EUM Me nko eat, MIA T Len PORE USE DL Brenson.—Palaeozoic and Mesozoic Seas in Australasia. 13 Tug POSSIBILITY оғ DETAILED STRATIGRAPHICAL CORRELATION OF AUSTRALASIAN GEOLOGICAL FORMATIONS. Before discussing the history of the various geological epochs in Austral- asia it seems well briefly to consider how far this is or may be determined in detail, for opinion has varied on this point among workers on Australasian fossils, McCoy (1866) believed in “ the fact of the specific identity of the marine fauna of the whole world during the most ancient Palaeozoic periods." De Koninck (1877), while recognizing endemic Australian species, supported McCoy by referring also many Australian forms to European species of Silurian, Devonian, or Carboniferous age. The validity of these identifications is, however, often open to grave doubt, and Etheridge (1891 ) advised that no Australian fossils be referred to European species unless on the clearest possible evidence, and that, moreover, great caution should be Tate (1901), while arguing against homotaxy, inclined to the extreme view continents had originally the same primitive eat European periods, but it is not always so. Terms such as ' Permo- Carboniferous ' and * Trias-Jura ' express a mingling of faunas representing Downs beds, the wide range (Carboniferous to Triassic, fide Woodward, 1908) of affinities of the fossil fish in the probably late Triassic shales near Sydney, &c.—reaching the conclusion that “in this region the European standard of palaeontology cannot be followed." "But, while we must not be unmindful of the difficulties, it may be questioned whether the emphasis placed on them has not unduly discouraged 14 Transactions. workers from attempting careful zonal collecting and investigation of faunas, more fully to test the possibility of detailed interpretations of the Australian geological record. Such recent work as has been done seems full of promise. Walcott’s (1916) comparison of the Lower Cambrian fauna of Australia with that of eastern Asia, and Keble’s (1920) elaboration of Hall’s grapto- lite zoning of the Lower Ordovician, are cases in point. Ruedemann (1904) has indicated that the zonal sequence of the graptolite fauna of New York in so far as it departs from that established in Europe approxi- such as they stand at present, in regard to the Devonian period are at least strongly suggestive of many interesting conclusions. The need for the compound term “ Siluro-Devonian ” has vanished. So, too, the term “ Permo-Carboniferous " is gradually succumbing to the detailed inquiries of Professor David and his associates; while the term “ Trias- Jura " has been robbed of the significance Hall attached to it (as indicating a real admixture of forms) by the important work of Trechmann and the most significant publication of which have shown that when the fossils lations may be mad the Cretaceo-Tertiary hypothesis seems to have the work of Woods some periods, and the correlation of i p ra-Australasian strata, is still very difficult in the Upper Ordovician rocks, the “ P d е т objects formed b ament ri times. Let me urge my countrymen to continue the geologists of other countri trata, lest they be left behind by is apparent, and who are é es to whom the necessity of this kind of study рія carrying it on with great success ” (Marr, 1896). present paper the writer, wh t palacontologioal knowledge, has considered мечу the Dee abeo stands, without attempting to revise the q content to consider position = the would-be antiquary who was ata or to discuss pros and cons, А ; Me STOPES, Science Progress, vol. 14, p. 347, 1919, Benson.—-Palaeozoic and Mesozoic Seas in Australasia. 15 and has drawn from it such tentative inferences as seem justifiable at the present time, in the hope that such a summary may help to direct attention to this broad aspect of geology. The intmediate need is for careful revision of much of the palaeontological data, the more exact determination in the field of the horizon or stratigraphical range of the various fossils, and the palaeogeographic consideration of the lithology of the rocks which contain them. 9 - g tyi 3 E ue i o ae , An ш = BF e E E T ESE £ I e S те 5 5” E > Li 3 Емге ee тё ga nian D Dev? ors “2 ov? ^5 sond dunes ек. g benealh * ка Permian & yd iw? сре? 2 4 SS a Post- Cambrian Plutonic Rocks ШЇЇ Pre-Cambrian Schists- gneisses granites ambhibolifes etc. 7777] “rystalline Schisis etc. of uncertain age ENSE Late Pre-Cambrian (‘Lower Cambr") Beds Jab "USiong in Pre Tug GEOLOGICAL HISTORY OF AUSTRALASIA. The foundation of the Australasian region is indicated as far as possible by map 1, which shows the areas of exposed definitely pre-Cambrian rocks, the probably late pre-Cambrian Nullagine rocks of Western. Australia and the possibly late pre-Cambrian or so-called * Lower Cambrian " of South 16 Transactions. Australia, the metamorphic complexes of uncertain age, and oa pos Cambrian granites and diorites. In the palaeogeographie maps 2-1 À ча is inevitably great uncertainty concerning the former distribution : ni and land in the vast and now submerged areas east of Australia, rt : outlines are merely suggestions which accord with some of the = з ? distribution of fossils or rock-types, and are not opposed by any other gi known to the writer. These do not depart more than seemed desirable from the earlier suggestions of Schuchert for the Palaeozoic times and Wa ves for the Mesozoic. The bulk of the literature concerning the particu In the Cambrian period a continental mass stretched from the west of the present coast of Australia at least to the western borders of the four s synclinal zone seems to have continued from pre-Cambrian times. In the Adelaide region, unconformably on a probably Algonkian complex of schists invaded by diorites and syenites, there is a thick series of sediments, basal grits, phyllites with followed by thick tillites, banded shales, and further limestones and shales. considers of Lower Cambrian a ancient crystalline com of Adelaide (Howe lan, wnat а disconformity must exist between these and the Archaeocyathinae limestones, which he considers to be definitely Lower Cambrian. This last 1з the view of Walcott (1916), who has examin While pa ^ 5 T geo ogy of the eastern and | ›ссезв Was obtained to the valuable summaries log: western rtio ns of the M i wer and Van Es (1919) 4 5 : f t Ialay Archipelago by Brou of the (1919) ; y ч these, but some data therefrom are incorporated um permitted à complete study Benson.— Palaeozoic and Mesozoic Seas in Australasia. 17 a representative collection of fossils, and it must therefore be considered the more probable.* The fossiliferous limestone makes a large reef-like mass at Blinman, four hundred miles north of Adelaide, and also occurs to the south of that city. Here flourished some thirty-seven species of Archaeo- cyathinae, Kutorgina, Nisusia, Micromitra, Eoorthis, Huenella, Obolella, Stenotheca, Ophileta, Hyolithes, Salterella, Olenellus ?, Redlichia, and Ptycho- paria (Etheridge, 1890, 1919; Taylor, 1910; Walcott, 1916; Howchin, 1918). No fossils are found in the overlying sandstones, the current- bedding and red colour of which suggest that they were laid down as the Lower Cambrian sea regressed from this South Australian trough. NUI wae с E or Es KZ 2. CAMBRIAN m. ie d n PERIOD {| | ЇЇ ЇШЇЙ aes кб hig ИШ! ИДУ y \ a | E cua 2. us. Eg У. ROS MM p apr wow? e ЖЕ M @# of ZA T RCM d M o UNA NM M KE... 94 wc € i se MM 7 ttn j | | | ба “| ШИ С] Land Area iM ý Hypothetical Осеоп | ЕЗ Upper Cambrian Sea ij ШЇ Lower Cambrian Sea | (| | "rf. Ш\ oe WC Nu SR Ч . 2E — — ——— ==; д А * n alam S O dme. QNT А liii Ha. LP EA Besides this transgression and regression of the sea into and from the South Australian trough there was a far more extensive flooding of the northern portion of the Australian continental massif. This appears to have been somewhat irregular in the commencement of Cambrian times, and there was laid down a very extensive series of conglomerates, grits, an sandstones, with some shales, followed by limestones now more or less dolomitic and silicified. This generally slightly undulating but locally strongly warped series extends from the Kimberley district, in the northern art of Western Australia, across the Northern Territory into western Queensland. The sediments contain Salterella, Agnostus, Microdiscus, Ptychoparia, and a Redlichia formerly described as Olenellus ? forresti (Etheridge, 1895, 1897, 1919; Woolnough, 1912; Basedow, 1914-15; Jensen, 1915 ; Maitland, 1919). There is no evidence to indicate whether the sea extended farther east than the Barkly Tableland, but it was * Compare also the relationship of the Lower Cambrian rocks on the Yangtse- kiang to the underlying glacial beds, which are “very probably" of Algonkian age (Walcott, 1914). 18 Transactions. probably connected with that in the South Australian trough. The possi- bility that this sea extended south-westwards to the Macdonnell Ranges was suggested by Howchin (1914) on account of the occurrence therein of Cryptozoón in dolomitic limestones which according to Chewings lie uncon- formably beneath fossiliferous Ordovician rocks. In regard to the origin of this fauna the evidence is as yet rather fragmentary; indeed, Reed (1910) and Haug (1911) considered that no palaeogeographical conclusions of much value could be based on it. Since they wrote, however, Walcott (1913, 1916) has examined representative Australian forms, and made valuable comments on the bearing thereon of the Cambrian faunas of Asia. “ The Lower Cambrian Man-t’o Redlichia fauna . . . is far as known, very distinctive, and confined to the Asiatie continent and Australia. Its transgression over eastern and south- eastern Asia was somewhat later than the transgression in the Siberian area now occupied by the Lena and Yenesei Rivers. . . . The dis- tribution of the Redlichia of the R. noetlingi form serves to demonstrate that the transgressing Lower Cambrian sea that contained Redlichia was confined to eastern and south-eastern China and northern India. The presence of Redlichia-like trilobites in southern and western Australia indicates that there was a direct connection between the Punjab Lower America.” In another sentence, however, he states, “ The Siberian fauna is, however, that of the Lower Cambrian of Australia, Sardinia, and North America " (in which Archaeocyathinae are present). According to H. Mansuy's (1912) work, the Lower Cambrian Redlichia fauna is present à : it was a centre of evolution and dispersion for these forms, but this is not certain. It was perhaps during the middle part of the Cambrian period (Tilley, 1919) that there occurred these extensive crust-movements a i Mount Lofty Ranges, and possibly have affected the region stretchin north-eastward to the western side of the Broken Hill area though the e Upper Cambrian (Heathcoti TOT WE Spread, and were laid xs in 86 tater’ of Victoria аге more wide Limestone is rarely t an forms Lingulella, Acrothele, Billingsella, with those of a more Ordovician aspect Benson. Palaeozoic and Mesozoic Seas in Australasia. 19 Ptychoparia. These beds are strongly folded and followed conformably by Lower Ordovician rocks (Skeats, 1908; Chapman, 1904, 1911, 1918a ; Asiatic-American fauna. No New Zealand rocks have been proved to be of Cambrian age on definite palaeontological grounds, though if the Upper Cambrian age of the basal Lancefield beds is sustained it is probable that the graptolite slates of Preservation Inlet, in the south-western extremity of the South Island—which Hall (1915) referred to the basal Lancefield beds because of the occurrence of Bryograptus, Clonograptus, and Tetragraptus in them— should also be of Upper Cambrian ag ccording to Park (1921), an extensive series of unfossiliferous sediments lies stratigraphically beneath hese. Ordovician. The coastal zone now passed through western Tasmania, Victoria, and New South Wales, bending north-eastwards into Queensland. In Tasmania the littoral deposits were breccias and sandstones and slates with indefinite graptolitic markings (Callograptus ?). In the Permo-Carboniferous glacial till deposits are scarcely recognizable, but the Lower Ordovician graptolitic slates are well developed in the western half of the highlands of Victoria, *See also Hills (1921). The writer is greatly indebted to Mr. Hills for furnishing "wf + him with a résumé of this useful paper in advance of publication. 20 Transactions. rocks, which Andrews (1913) considers to be pre-Silurian. These are followed eastwards by a widespread series of graptolitic slates and (rarely) radiolarian cherts, which, however, belong entirely to the Upper Ordovician. In the north-eastern corner and extending thence into Queensland are the very altered phyllitic rocks known as the Brisbane schists, and these, together with some slaty rocks near Rockhampton, contain phosphatic minerals which, in the absence of better evidence, has caused them to be grouped with the Ordovician rocks of Victoria (Dunstan, 1916). The graptolitic Lower Ordovician rocks in Victoria were divided by Hall (1899, 1914) into four major groups, termed, in ascending order, the Lance- fieldian, Bendigonian, Castlemainian, and Darriwillian beds respectively. Harris (1916) and Keble (1920) have divided parts of this succession into numerous subzones, the latter finding these to be of considerable economic | mu: ul | | xg : БАГ c > er Re T., Sve Ө зл @ оь | TERT «a I SE Cine е ММ” Е ggg | UPPermést Ordovician Sea >: И... af M р (Macdonell Range Series) PEE DUM к: е ii | 7. ca ш Sea ond >>, Vea cll 2 | 8 Lower exposures of sediment [| | ill Е ; с: significance in the study of the Bendi ; oe of he hac „шау endigo region. Characteristic genera beds, wherein the second two are subordinate, but the first pair also ascend as high in the series as the Castlemaini eras d : than the highest to which they EM non is on олие habs ascend in Europe and America, where ovician formation. The Upper Ordovician faunal succession has not yet been so closely studied and subdivided, but А ; e ‘ E . E 5 occur with andesitie (or spilitic) la КИ неш оосайо ну va-flows. The chief fossils Benson.—Palaeozoic and Mesozoic Seas in Australasia. 21 are Protospongia, Climacograptus, Dicellograptus, Dicranograptus, Didymo- graptus, Diplograptus, Glossograptus, and Retiolites ; while Obolella, Hyolithes, Trinucleus, and perhaps Agnostus are present (Hall, 1900, 1902, 1909, 1920). Lower Ordovician rocks form the oldest viderint formations in New Zealand, and consist of greywackes, some limestone, graptolitic dee appar rently merging into mica-schists. In the ен western extremity of New Zealand (Preservation Inlet), originally described by McKay (1896), the slates contain Clonograptus, Bryograptus, and Tetragraptus, for which reason Hall (1915) correlates them with the lowest агат of the Lance- fieldian beds in Victoria and considers them of basal Ordovician age,- тенет as pointed out, it is possible they should be classed as uppermost Cambrian. The slates seem to pass own into mica-schist and these in turn into the so-called “ granitic gneiss,” a sillimanite-paragneiss which Park (1921) suggests may represent Cambrian sediments, but in such com- plexes the appearance of superposition and relative degree of metamorphism cannot safely be taken as proving relative age. In the north-west of the South Island of New Zealand the Lower Ordovician rocks are much more widespread, though similar in lithological character (Bell, 1907). The genera present in the fossiliferous rocks are Bryograptus, Dichograptus, Didymograptus, Loganograptus, and Tetragraptus. The determinations made by Mrs. Shakespear (1908) and Hall (1915) concur in indicating the presence here of two zones belonging to the middle portion of the Lower Ordovician Recently Professor Park has discovered a further series of graptolitic slates at Cape Providence, twelve miles north-west of the older graptolitic slates at Preservation Inlet. is кл determinations of the forms present indicate that they are approximately coeval with those last mentioned in the northern end of the Island, and with the Castlemainian beds of Victoria. (Private communication. In regard to the derivation of the Australasian graptolitic fauna, it wis be said at once "p the forms present are those of the cosmopolitan pelagic types found in Europe, New York, Bolivia, and recently in Peru (Lapworth, 1917), dee that in those features in which, according to Hall, the Vietorian (and also the New Zealand) zonal succession of forms departs from the European succession it accords with that prove Ruedemann (1904) to be present in New York. It would appear, therefore, that the conditions obtaining in Upper Cambrian times were not wholly reversed during the Ordovician peri It is difficult yet to trace the sequence of events in the latter part of the Ordovician period. A strong folding doubtless occurred, and land was subjected to erosion extending throughout the present region of Australia, tor where the Silurian rocks are seen in contact with the Ordovician rocks in New South Wales—-e.g., the Shoalhaven River as described by Woolnough (1909)—there is a marked unconformity between them. Indeed, connected with this folding there appears to have been a considerable intrusion of granites which have caused profound meta- morphism, and according to Browne's observations ( 1914) in the south- eastern angle of that State have converted extensive masses of the Ordovician slates into mica-schists. The relationship of these to the supposed pre-Cambrian schists of eastern Victoria is not yet definite. The unconformity between the Ordovician and Silurian slates in central Victoria is not so marked. Loftus Hills (1921) has made dins their relation- ship in western Tasmania. The basal West Coast Range conglomerate, a 22 Transactions. thick and continuous series, rests unconformably on the Ordovician slates and porphyroids, fragments of which it includes, and is followed by a thick that its presence indicates that the orogeny occurred during Upper Ordovician time, and the subsequent transgression commenced in the Gulf in South Australia may also be part of the same series. According to Maitland (1919), we may perhaps group as probably coeval with these the almost horizontal unfossiliferous sandstones, dolomitic limestones, &c., of the Nullagine series, which, overlying a crystalline complex, cover present in the Macdonnell Ranges include the following genera: H yalo- stelia, Orthis, I. soarca, Palaearca, Pteronites, Eumena, Raphistoma, Ophileta, Orthoceras, and Asaphus. Tate (op. cit.) thought that these indicated a the Australian Ordovician neritic forms, for they are not very marked, yet the relations of the species seem to be with north European forms. It would seem, therefore, as if the late Ordovician orogeny had been accompanied by such changes in the geography of the other parts of the orld as to open the Australian seas to the stream of European life- period, but the sea continued in the eastern States, where a continuous succession of Silurian rocks was laid down. Silurian. th its transitional Ordovician-Silurian auna, appears as the oldest of the Silurian fossiliferous formations in the eastern States. Among the forms present are Favosites, Tetradium (which was at first referred to Archaeocy al : Dalmanella, Camarotoechia, Pentameru athus), Halysites, Pleurodictyum, equivalent to the Lower Sil n 1896 ; » 1910; Chapman, 1919) uran beds are repre m 22. В ѕеп northern Tasmania by the Chudleigh limest : эне тры E (Etheridge, 1898). g Stone, which contains Ha ysite. Benson.—-Palaeozoic and Mesozoic Seas in Australasia. 23 The extensive fauna of the Silurian rocks of Victoria has been studied in detail by Chapman (1908, 1913, 1916). The Lower Silurian (Melbournian) beds occur in the centre of Victoria, running northwards from Melbourne. They consist of mudstones and sandstones exhibiting a mixed Wenlock and Llan- dovery fauna.. Some 135 species have been recorded. The archaic trilobite Ampyz, and an Шаепиѕ allied to an Upper Ordovician form, are associated with Monograptus priodon, Botrycrinus, Palaeaster, Palaeechinus, Camaro- toechia, Lingula, Nucleospira, обесена. pe many molluscs. The Upper Silurian (Yeringian) beds ather more to the east than the former, extending into Gippsland. The comprise Sinton, mudstones, and lime- stones, from which 200 species of fossils have been obtained with the facies of 4_ SILURIAN UT i PERIOD Е] Land Area (RS) Upper Silurian Sea Lower Silurian Sea [3] Exposures cf marine sediments ————— the Wenlock limestone and Ludlow shales. Monograptus riccartonensis and M. convolutus, Favosites, Heliolites, Clathrodictyon, Actinostroma, Atrypa, Chonetes, Orthis, Pentamerus, Platystrophia, сс оеро, numerous mol- luses, Bronteus, Cheirurus, Encrimurus, Phaco s, and many ostracods occur in this rich fauna.* In the west of Gippsland there are shales containing Panenka, Styolia, Tentaculites, and Kionoceras in a small fauna of eighteen species which may represent a still higher horizon in the Silurian series; but Whitelaw (1916) has shown that these are overlain woy Mein of. coriis в ichelinia and Phillipsi aed, W re more abundant in the i the Siluri n rocks of the Northern Hemisphere, of Plewrodictyum, which is there confined to the Devonian his constrains us nstrains | that certain forms of life appeared among the Gothlandian and Wenlock facies earlier in the Southern than in the Northern Hemisphere, and migrated thence | during the transition period between Silurian and Devonian e epochs ^ ке 1920), 24 Transactions. further conglomerates, grits, sandstones, and shales with a very late Silurian fauna, if not actually transitional into the Devonian. Chapman (1913) compares the fauna of the last two formations with that of the Helderberg series in North America. Silurian rocks form the most widespread of the Palaeozoic formations of New South Wales, and include representatives of both the lower and upper divisions, as was pointed out by De Koninck in 1877, and these correspond to Melbournian and Yeringian series respectively of Victoria. The palaeogeographic conditions, however, seem to have been somewhat complex, and we will not here attempt a detailed analysis of them. The eastern margin of the continental nucleus extended through the region of the Western Plains, and littoral conglomerates lying unconformably on the ` Ordovician (?) rocks are widespread near Cobar (Andrews, 1913). They also occurred farther to the south-east in the Forbes-Parkes district (Andrews, 19104), and the Yass district (Shearsby, 1911), but are absent elsewhere, “while the general occurrence of alternating sandstones, claystones, an limestones indicates tranquil deposition in a comparatively narrow sea" (Süssmileh, 1914). The most extensive sequence of fossiliferous beds is in the Yass district. In the shales, sandstone, and limestone of the lower portion, Tryplasma, Pachypora, Cyathophyllum, and Halysites occur, with some brachiopods; while in the upper portion there is a very extensive Wenlock fauna, enumerated by Shearsby, containing many genera of corals, brachiopoda, mollusca, and trilobites, of which the following are present : stromatoporoids, Favosites, Heliolites, Halysites, Pleurodictyum, Zaphrentis, Tryplasma, Cyathophyllum, &c., sometimes with Orthoceras and Astylospongia. Some forms had a wide range, whilst others were confined to limited areas ; but the meaning of this distribution has not yet been fully investigated ). hone : ро ы трак eee Pentamerus. Ball (1918) thinks the slates and limestones = e Cloncurry district of north-western Queensland may also be of this | T noceras and Ort. 'atit to- pora (Etherid ‚1911; bet vee, hoceras, Orthoceratites and Stromato "urian rocks are known in New Zealand al At Reef in the north-west of the South Isl Се шиш Au (Henderson, 1917) сау AF are found th - : h ad ges. water sedim ents, calcareous argillites. Thomson (1913) s regions, but so far as is indicat е faunal facies in the oder E by the provisional ublished) terminations of Dun and Chapman both are be with the Upper Brenson.—Palaeozoic and Mesozoic Seas in Australasia. 25 Silurian faunas of south-eastern ré The presence of a Pleurodictyum allied (fide Chapman) to P. megastomum Dun of the Australian Upper Silurian beds is an interesting connecting link. The earlier attribution of the Reefton beds to the Lower Devonian period seems to be quite unwarranted. ummarizing the features of the Australian Silurian faunas, pes due remarks, “The mixture of Periarctic an ohemian for di tinctive mark of the Silurian fauna of this region, while in New Zealand there is an intermixture of European and North American species with local elements."* As the latter statement rests only on Hector’s pro- visional determinations made forty years ago, judgment concerning it must be suspended. Devonian. The distribution of marine Devonian formations throughout Australia has been discussed at length by the present writer (Benson, 1921), whose conclusions are here summarized. Intense folding occurred throughout the eastern States at the close of Silurian times, with intrusion of granites during the early part of Devonian times in Tasmania, Vietoria, and pro- bably south-eastern New South Wales. Land then extended to the east of the present coast. In the last two States the widespread outpouring of acid lavas which seems to have been associated with this plutonic intru- sion was followed in Middle Devonian times by the formation of a long narrow trough by which the sea entered into Gippsland and southern New South Wales, where a thickness of at least 12,000 ft. of shales, limestones, and tuffs was formed. These beds contain over one hundred species of australis and Spirifera yassensis, nba Diphyphyllum gemmiformis and various cephalopods are also importa There is not yet sufficient evidence to indicate whether this fauna should be classed with the lower or upper portion of the Middle Devonian rocks. It is not, however, followed con- formably by the Upper Devonian rocks, for strong orogenic movement caused the retreat of the sea in the latter part of Middle Devonian or early Ee Devonian times, and gently inclined subaerial Upper Devonian sand- stones, &c., rest with marked unconformity on strongly folded Middle Devonian rocks. A second and larger depression occurred farther to the north, and may have been formed at an earlier date, while it certainly continued to a much later one. Andrews (1914) and David (1919) would apparently invest this trough with very considerable tectonic significance, indicating that it separated the mainland of Australia from the north-eastern land-mass, *'Tasmantis," the tectonic history of which has been very different from that of the rest of Australia. How far it extended to the north-west through Queensland we cannot say, as its sediments are hidden beneath Permian and Mesozoic rocks; but there is some reason for believing that it did not continue as an open channel between New Guinea and the Northern * An interesting instance of the wide geographic range of Australian erue species is afforded b y Yabe's (1913) study of the irm Halysites. Several species originally described in Australia are found by him to be represented ide here : H. süssmilchi in Gothland, H. australis in Dudley, England nd H. pycnoblastoides in China near Ychang. (Yabe is, d жецш {о nar ies the similarity of the Canadian, Baltic, and Australian form the hate p parallel evolution saevi analogous conditions from a common Ta pid ben by a continuous intermi of derived forms.) 26 Transactions. Territory. To the east it may have been limited at first by the ridge now shown by the Brisbane schist, but Ball’s (1921) discovery of Heliolites at Warwick beneath the strongly folded Permo-Carboniferous beds indicates that this barrier was flooded over at least in the latter part of Middle Devonian times, when a commingling occurred of the forms in this (the eastern) and the Queensland (or north-eastern) gulf. Richards (private communication) has found that the Devonian limestones near Warwick are associated with radiolarian claystone and tuffs like those which are so wide- spread in north-eastern New South Wales, as the writer’s investigations have shown (e.g., Benson, 1915). : The Middle Devonian beds in the eastern gulf have no visible foundation. They are an extensive series of radiolarian claystones with much tuff and three intercalated widely extending coral limestones. The lowest of these, Мм ee Й ee nC bn, у 0 - LI L . n C=] Land Area — eee Late Upper Devonian Sea Ас iy X: recien ERI Early Upper Devonian?) Sea = a EES Middle Devonian Sea ж ; Exposed marine sediments Qo UN uH RET Which may be teferred to the early Middle Devonian period, contains Favosites basalt т. moonbiensis, F. multitabulata, and other aper tains a large coral fauna characterized by Heliolites ротоѕа, an endemic form Sanidophyllum, S | no — 1 оры нт, Bpongophyllum, Endophyllum, Actin a Microplasma, Litophyllum, and the characteristic Givetian brachiopod —.. Stringocephalus. In the radiolarian mudstones associated with this lime- Stone, casts of Lepidodendron australe are frequently present, and continue Brnson.—Palaeozoic and Mesozoic Seas їп Australasia. 97 to abound throughout the great thickness of Upper Devonian mudstones which succeed. The sediments appear to have been formed in a widespread but comparatively shallow sea, in which explosive eruptions may have frequently built up temporary islands, especially in later Middle Devonian times. The Devonian rocks of Queensland are less fully known, and lie for the most part in the highland regions to west of Rockhampton and Townsville. There is a very great thickness of conglomerates, sandstone, shales, and - limestones, the fauna of which resembles the Upper-Middle Devonian fauna in the eastern gulf in the presence among it of Heliolites porosa, Litophyllum, and Stringocephalus ; and, as indicated above, the two gulís may have at one time opened into one another; nevertheless, Lepidodendron australe is as yet unknown in the Queensland Devonian rocks. Possibly Upper the Upper Devonian, the sea entered the northern (Kimberley) division of Western Australia, and this movement of the strand may thus have been approximately coeval with the regression of the sea from the south- eastern trough. On a basal conglomerate was laid down a thick mass of limestone containing Spirifera cf. verneuilli (S. disjuncta) and Rhyn- chonella (Hypothyris) cuboides, together with stromatoporoids. The relation of the western to the eastern Australian Middle Devonian Burma, nor is it present in the smaller fauna of Western Australia. This suggests that the great Tethyan migration of European forms through Asia was divided by the northern end of an ancient Cambodia-Malayan continental mass— perhaps the Aequinoctia of Abenadon (1919) — the * See also Maitland (1905). In a private communication dated 24th October, 1922, Stanley says, “ During my travels through the main ranges I have discovered i i orming escarpments in altitude of 7,000-8,000 ft. The same features have recently been met with in the Saruvaged Mountains, Central (German) New Guinea, by Captain Retzner. These are not Tertiary, but appear to be cot Du ч erminous with the Dutch occur- rences (the Alveolina limestone of the Wilhelmina Range), and may, therefore, be tace I have not seen any fossils in these yet." The Alveolina limestones, how- ever, formerly thought to be Cretaceous, have now been placed by Rutten ( 1914) in the Eocene. In addition to this, we may note that Hubrecht is of the opinion t large masses of crystalline limestone in the south-west of New Guinea are really Permian (Brouwer 1919). з ; yp 28 Transactions. western division passing through Burma to Western Australia, while the other, receiving in China an influx of American forms arriving by the circumpacific channel, passed south-eastwards towards the then Tasman Sea. The complete absence of Devonian marine beds in New Zealand and New Caledonia has led the writer to suggest the land-boundaries in map 5. Considerable changes occurred in the closing parts of Devonian time. "The sea had withdrawn from Western Australia, Queensland, and the south-eastern gulf, but now emerged from the eastern gulf and trans- gressed widely, covering almost the whole of New South Wales, flooding over the eroded but still uneven surface of the regions which had been folded at the close of Middle Devonian times, and depositing a series of conglomerates, sandstones, and shales, which are caleareous only near the margin of the eastern gulf, where they also reach their maximum thick- Vis nature of this transgressing fauna is of interest. It has frequently Qu ates ae gt how cosmopolitan is the Upper Devonian fauna, an resent in New South Wales. Never- andae than Ale pee ence that the periodici : : ү and American el at ан faunal migrations between the Asiatic ever, In opposition to Schuchert’ hesis th : uchert’s (1910) hypothe at the Portage-Chemung fauna agro directly across the Atlantic from | u 1 (1898) that it came across the Arctic Apo spread south-castwards by way of the cordilleran sea, it would follow Brenson.—Palaeozoic and Mesozoic Seas in Australasia. 29 that the analogous eastern Asiatic and Australian Upper Devonian fauna was due mainly to an offshoot from this which passed along the western shores of the Pacific. It is worthy of note, however, that there is in the Australian Devonian faunas no community whatever with the (Lower 2) Devonian fauna of South Africa and South America, of which Clarke (1913) has given a comprehensive account. This may indicate that the Ant- arctic marine channel of migration, which was to become important in Upper Cretaceous times, was not yet.in existence. Carboniferous. The characteristic Lower Carboniferous (Burindi) beds are confined to the eastern gulf in New South Wales. They follow in apparent conformity on the Upper Devonian mudstones at all points which the writer has observed along a line of contact of over one hundred miles in length (Benson, 1918), E CARBONIFEROUS SEX PERIOD — cloro MUSS ot e тс: “х Е : Ld E SENS ин РЕ —— m ' pma METRE — zi NE. EMÁÓ AT p. SOM: c eet E See С n Qe den fios a dex AN Norbert . diu EDI S oS SN. 1 ‚с. Ge —— е. un. Q. ..5$.9 V m is, — Lo ee ee Dx. dup ———— —— а as e om eee So =: [ Land Area: css RR = : сузу с» 6. «X о es s GERD Upper Carboniferous МЕ. Yi шс г, lasting into Permian times ` ` ^ e E ш» SS Upper Carboniferous (2) Ausw/ina Sea (a E Ln m " ^" п " - sf . LQIm— * > ai eo. . è E Lower Corbonife Sea [E] f, ; > ; oi rboniferous Sea FEE Exposures of marine sediments ^ ‘°° °° c though it is possible that some disconformity may exist between them, as the faunal change is so marked; indeed, the absence of any sign of ‘the late Upper Devonian fauna between the Middle Devonian and the Lower Carboniferous fossiliferous beds is in itself suggestive of the existence of a break in this apparently continuous series of sediments. This would accord with the view of Siissmilch (1914, 1921), though it is opposed to the writer’s former belief. iissmilch, indeed, believes that away from the region of deposition of the Lower Carboniferous marine sediments there was viii orogeny at the close of Devonian time, accounting for the intrusion of кы а е реи Devonian quartzites west of the Blue Mountains, nites have i 1 8 к een since laid bare and covered by Permo-Carboniferous 30 Transactions. In Queensland there is no clear evidence of the existence of Upper Devonian rocks, and the widely extending Lower Carboniferous (Star) beds probably represent a transgression over a region from which the Devonian sea had regressed. There is not yet available, however, contemporaneity of the two faunas. We devote attention, therefore, to the better-known fauna of New South Wales, the information concerning (1920) and Mansuy (1912). Though this fauna appears to have come to Australia from the Asiatic Tethys by way of the eastern Malayan route, a relationship, however, seemed to be greater in Upper Carboniferous imes. i orogeny made such geographic changes that there is a marked community between the Upper Carboniferous fauna containing Fusulina in western orth America and eastern Asia, and perhaps to a less degree the Urals also. The American element has been clearly recognized as far to the ‘south-east as Yun-nan (Mansuy, 1912) and Sumatra (Fliegel, 1901) mingling with Himalayan forms. most Important results in Australia, which have been discussed by Professor David (1919). Briefly, these involved in the east an extensive elevation of the land, and the withdrawal of the Lower Carboniferous sea from the » along the margin of which a series of very active volcanoes is still incompletely understood, though the Benson.—Palaeozoic and Mesozoic Seas in Australasia. 31 mision sep ges involved in the institution of the Gympie series (Jack, 1892) are now fairly clear. To this region we return, but digress here to consider events in the west. ** Permo-Carboniferous ” or Permian. Towards „the close of Carboniferous times the sea entered the north- ia hich were laid down tillites, shales, fessor David (1919) with interesting results. There appear in it typical members of the Lower Carboniferous fauna mingled with members of the Himalayan or Salt Range fauna, such as НехадопеПа crucialis, - PERMIAN "n ЇЇ И = Perma Coa Measures [; ail ting o ES Tethyan Permian Sea = cose Eastern ide ewe: rte PRU М d ui а. Sea ond exposed sediments ' i Derya senilis, e — Productus eti ct red une hse ey or Upp Western Australian à Northern Territory s o ей ne hand as | those of eastern Australia on the other. Out of adh two mas species recorded in the Permo-Carboniferous marine fauna of eastern Australia and Tasmania, only about nine are at present known to be common to the two” (David, = 32 Transactions. No less marked is the want of community between the Permian marine fauna of eastern Australia and the preceding Lower Carboniferous fauna. з, Moeonia, Notomya, Deltopecten, and Aphanaia, with some cosmo- politan genera. There is little, however, distinctive among the gasteropoda in the argillites of the eastern portion of New Caledonia, while farther west, in the gritty littoral beds of the same formation, there are the typically Tethyan cephalopods Waagenoceras, Stacheoceras, and Popanoceras, which n New Zealand also is a faunula showing Australian affinities, though containing nothing typically Tethyan. Trechmann (1917) described from the Wairoa Gorge, near Nelson the fossiliferous locality found by McKay the described Australian species. Attention may, however, be directed to the form occurring in the Permian (“ Carboniferous ”) rocks of Hobart, which R. M. Johnston termed Inoceramus elegantula, though his illustration of it (Geol. of Tasmania, pl. xv, fig. 13) does not suggest affinity with either the * Dun Mountain noceramus " or Aphanaia. ; Omitting at the moment further discussion of eastern Australasian ng palaeogeo aphy, we turn to consider the source of this fauna the Tethyan route, Ti f : e first four of these are represented by. closely allied forms in the Lower Carboniferous but not in the Permian of eastern Australia, the latter having no direct representatives in the Timor Permian * If it should be that the attribution of Rhynchonella ti 7 i : onella timorensis to the Devonian : Бе than to, the Upper С boniferous of Western Australia прая (Foord, n ) we should have yet another link between the Western Australian and Timor Benson.—-Palaeozoic and Mesozoic Seas in Australasia. 33 passing between the Канева таана СОВЕ ot an ancient continental mass stretching to the north-westwards from Australia—the Aequinoctia, which Abenadon (1919) believes broke up at this time—spread into the seas on the eastern margin of Australia, and there evolved during the closing part of the Carboniferous period into the provincial fauna which characterizes the region (compare Dun, 1914; David, 1919). ince the above was written access has been obtained to the summaries of the geology of the eastern and western portions of the Malay Archi- pelago by Brouwer (1919) and Van Es (1919) respectively. These are of such importance for Australasian geology that the following abstract of the portion dealing with the Permian rocks has been incorporated here. . sandstones containing fragments of crinoids, Spiriferina ?, Orthis?, a rhyn- chonellid, and Proetus, originally described by Martin (1911), and a large thickness of shales and limestones in the Snow and Hellwig Mountains, farther north. Crinoidal remains are found in Luang and Babar, and also in Lett, eres Molengraaff (1915) found that the series of fossiliferous pe sediments in the south of the island pass northwards into schists. fossils consist chiefly of brachiopods and crinoids, with Fusulinidae an ammonites such as Agathiceras (a : represented by A. micromphalum in both Western Australia and New South Wales). Broili’s (1915) account of the brachiopods indicates the presence of the following Himalayan forms: Productus cora, P. spiralis, Spirifera тү (= 5. musakheylensis), Reticularia lineata, Martinia nucula, апа Chonetes strophomenoides (all but the last two being also present in Western Australia), and Spirifera rajah, which is closely al ied to the characteristic eastern Australian form S. cedri or itself the littoral deposits are more richly а ag but detailed pof of the fauna are not here available. "There is a great wealth of mostly endemie echinoderms ыа by Wanner (1916), and of cephalopods (Haniel, 1915) ; the latter include, besides those mentioned above, Gastrioceras (which, wit : micromphalum, marks a definite zone in Western Australia), Waagenoceras, Popanoceras, Cyclolobus, Medlicottia, and other Himalayan genera, together with a large series of brachiopods described by Broili (1916), * which give less definite evidence of age (cf. Schuchert, 1906). Haniel (1915), on the basis of the ammonite fauna, has recognized four stages in these rocks. The lowest is coeval with the lower part of the Artinsk beds (Lower Permian), but contains some Carboniferous elements; the second is Up pper Artinsk-Sosio ; no analogy Productus limestone of Upper Permian age. Schubert (1915) considers the Fusulinidae indicative of an Upper Carboniferous age, but Van Es (1919) believes them to be Permian, to which period also Brouwer (1919) 2—Trans. 34 Transactions. with the Wichita formation in North America. We thus see that the Tethys geosyncline, of the duration of which in Mesozoic times we usually think, was marked in the Permian and extended from the Mediterranean area to the East Indian Archipelago. But a certain independence appears in the development of the faunas, so that the connection between them was not completely open . . and it is not remarkable that littoral sediments should have been formed [here] in this geosyncline " (Brouwer, 1919). The presence of fossiliferous Permian beds in Rotti and Savu has also been noted, but in Java the oldest exposed formations are Cretaceous. An important Permian series is developed in western Sumatra, of which m presented to the British Association in 1915 and 1917, and in Professor David's (1919) last discussion of the question, is indicated in the following diagram :— Lower Monne Greta 7 А дег Mar. NIFEROUSIP E R Ме. CARBONIFEROUS "MOUPO PAL&O-PERMIAN OR PERMO- CARBS INEO-PERM| pore ee OKWBONIFEROUS jis PERMGregory 17 MID-CARBSIUP CARBIPERMIAN OR PERMO-CARBONIFEROUSDavid 'I9 Diagram showing Me ms classifications of the Carboniferous and Permo-Carboniferous of New South Wales. (Relative thicknesses not to scale.) The palaeogeographic features of eastern A i i iod | х ustralia during the per! ber: long been studied by Professor David (e.g., 1907), and е also being Brenson.—Palaeozoic and Mesozoic Seas in Australasia. 35 studied by Dr. Walkom, whose preliminary conclusions concerning north- eastern New South Wales have already been stated (1913). We shall not, therefore, anticipate further work, but shall briefly summarize our present knowledge of the region. The marine beds are grouped into a lower and an upper series, deposition having been interrupted by a regression, when lagoons. or “ inland s paratively shallow seas, and there are many indications that they were laid down between the Australian mainland and an eastern land-mass that is now submerged. The ice-sheet which had first gathered on the mainland in Middle Carboniferous times probably reached its maximum at the close of that period, and fluctuations of the ice-front during early Permian times seem to be indicated by the presence of unusually abundant erratics dropped from floating bergs, at several horizons in the marine rocks (see, e.g.. David, 19074). Crust-movement occurred during Permian times in north-eastern New South Wale southern Queensland. Dr. Walkom's (1913) palaeo- second marine invasion was divided, and the westerly portion of it trans- gressed considerably farther on to the continent than did the first marine transgression. is crust-movement was apparently a prelude to the 01 e exte 8 The details of the distribution of the “ Upper and Lower Marine" Australia, and we find that the land-masses of “ Tasmantis " had become ited to the Australian continent by the commencement of Triassic times. As noted above, the discovery of Glossopteris indica near the South Pole Permo-Carboniferous Gondwanaland, and affords us the first intimation, since geosyncline on to the continental massif to the east, the only account of these rocks accessible to the writer is that of Douglas (1914), who deter- mined fourteen species from South Peru and Bolivia, most of which “ appear to belong to an Upper Carboniferous or Permo-Carboniferous fauna showing affinities with types . . . from the Urals, while a few seem more nearly Q* 36 Transactions. related to Permian forms from the Salt Range of India, and from the Guadalupian fauna of New Mexico." No eastern Australian forms are present. In Keidel’s (1922) recent work (for the translation of which the writer is indebted to Professor Elder) the marine beds in the Pre-Cordillera of the western Argentine, supposed by Stappenbeck (1910) to be of Upper Carboniferous or later age on account of the presence of a form resembling Spirifera supramosquensis, are shown to be interstratified with tillite, and to contam a number of other species of Spirifera, Dielasma, and other brachiopods, Pleurotomaria, and several other gasteropods, all rather imper- fectly preserved and not yet specifically determined. This group of glacial and marine beds has been traced for about a hundred kilometres north and south, and throughout has been thrust to the east on to the Gondwanan continental massif. It appears, however, to have been deposited uncon- formably on the Lower Carboniferous and earlier Palaeozoic beds that form the western margin of that massif. Keidel terms these glacial and marine beds the Tontal series, and correlates them with the Permian beds of Australia. Some unnamed marine fossils of this age have been found by Oliveira and recorded by Woodworth (1912) from Rio Negro in south-eastern Brazil, and in south-western Africa Conularia and the Indian form Eury- desma globosum have been found by Schroeder (1909) associated with the Dwyka tillite. There is thus no clear evidence of the migration of marine forms during the Permo-Carboniferous period along a hypothetical Southern Pacific Gondwanaland coast between Australasia and South America We return to consider the Permo-Carboniferous or Permian record їп. age of the Maitai series was at first influenced by the supposed presence of Aphanaia therein, a form belonging to the “ Upper Marine ” series of New South Wales, in which also the other New Zealand forms are represented, excepting Spirifera cf. bisulcata, which occurs in the Lower Marine beds but more usually in the Lower Carboniferous, and Rhynchonella or the “ Aphanaia” of Trechmann, are widespread in the greywackes throughout the South Island, and in default of better evidence may be taken characterizing “ Maitai” rocks in several regions in South Canterbury and North Otago, and Professor Park (1921) has recently PME to the same series, at the northern end of the Livingstone ange, west of Lake Wakatipu. In these he noticed the presence of ure corals and gasteropods. The suggestion Benson.—Palaeozoic and Mesozoic Seas in Australasia. 37 area may have been littoral to a Southland - Chatham Island continent, not glaciated, nor supporting Glossopteris, rather than to the Australian mainland. Neither drifted erratics* nor Glossopteris have been proved to occur in the Maitai series ; but, as no fresh-water beds are known in the Maitai series (in its restricted sense), this last point may not be very significant, and does not appear to vitiate the suggestions in the map. Triassic. & ///, 8. UPPER TRIASSIC 7 Be Ziv, PERIOD А алк а е Z Based on Dr Мот» Ж WEIT oe sy 2: chort with slight iun ae _:% modification EE OS РОР РИ Г, j D TUE DE Fe P 9 u^. OA / В IT лечи f v 4 iiim E E LACUSTRINE CONDITIONS Р 72 $5 . С jar ЕСО | É : e = pur Tie » Limit of Middle Triassic Lake БЕ Exposures of sediments of origin indicated a Л е аш discussion, Benson, 1921). Marshall, however, who in 1912 strongly upheld the first view, has concluded (19174), since Trechmann’s description of the Maitai fossils, that a break of some kind must occur between these * Professor Park (1920) has discovered striated boulders in a breccia in eastern Otago which may be either of dynamical or glacial origin. He inclines to the latter tion. They appear to be in “ Maitai " rocks. 38 Transactions. and the Triassic fossils; and Park (1921) has revived Hutton’s view that this was a period of great orogeny and intrusion of plutonic rocks, including among them the diorite-gneisses and associated plutonic rocks of south-western New Zealand and the peridotites, &c., of New Caledonia a regression of the sea in Middle Triassic times is indicated (Piroutet, 1917). The relationships of New Zealand and New Caledonia during the Triassic period are of great interest. While Terebellina (?) mackayi, with Lower Triassic forms such as Pseudomonotis ай. painkhandana, Ophiceras, ably on the Permian sediments (Brouwer, 1919). These are also repre- sented to some extent in eastern Asia, whence they apparently migrated into California, since the community of character of the forms on either side of the Pacific was very marked in Lower Triassic times, indicating an intimate connection of the two regions, which became interrupted during the crust-movements of Middle Triassic times (Smith, 1904). e see, therefore, that the extension of the Tethyan coast to New Caledonia, but not to New Zealand, was a feature of Lower Triassic as well as of Permian times. Regression occurred during Middle Triassic times. Beds of this age are absent from Sumatra (Volz, 1899) and Rotti, but are present in Timor containing a neritic cephalopod fauna more like that of the Alpine than the Asiatic Tethys (Brouwer, 1919), and in New Caledonia are represented by an incomplete series on the western slopes containing Daonella arctica (a Siberian form); but on the east Upper Triassic rests directly on Lower Triassic (Piroutet, 1917). The crust-movements which occurred at this time in New Caledonia, and probably in New Zealand, joined the two lands so intimately that in Upper Triassic times they formed a well- marked province in the south-eastern extremity of the Tethys. This, Wilckens (1920) suggests, may be termed the Maorian province. It possesses features distinguishing it from the Himalayan and Malayan fauna (with which, nevertheless, it has much in common) ; and, moreover, the fauna is not yet known in New Guinea, so that Walkom’s suggestion (1918) that a northward extension of Australia projected into Malaysia— which would prevent the free south-eastward migration of the Tethyan fauna—accords well with the conclusions we have formed concerning earlier epochs. Nevertheless, the Upper Triassic transgression was felt through- out the whole region considered. Volz (1899) found Upper Triassic forms resting directly on the Permian sediments in Sumatra. In Timor and tti, Carnic forms (Daonella and Halobia) and Noric (Pseudomonotis ochotica) are present (Wanner, 1907) ; and other islands of the archipelago —Misol, Ceram, &c.—show also a development of Upper.Triassic marine Benson.— Palaeozoic and Mesozoic Seas in Australasia. 39 Upper oe series in New Zealand. The following table summarizes the facts know COMPARISON OF UPPER TRIASSIC PALAEONTOLOGICAL ZONES IN NEW ZEALAND AND NEW CALEDONIA. New Zealand. New Caledonia. RHAETIC. Arcestes cf, rheticus ; Mentzelia ; Clavigera | Матїпе „Жиза preliminary to orogenic | movem Noric, Pseudomonotis ochotica (zone locally miss- | Heer agii sp.; cephalopods; Rhyn- seudomonotis annaran (abundant, . [жейли "richmondiana (abundant). but zone locally missin | Spirtferina spp. : <» a еч, ial dente &c.; Pseudo- ia cf. rarestriata (єї КК чы missing). CARNIC, тона ее var. zealandica, Н. hoch- | Halobia hochstetteri, H. austriaca ; Spiri- stetteri, H. cf. austriaca ; Myophoria and gera wreyi; Disco ; ' Arcestes mah aie ue d Spiriferina sp. ; Spirigera spp. wreyi ; Halorella sp.; Retzia sp.; oo P gasteropods ; H. hoch- Discophyllites sp. ; Arcestes Н. austriaca; Retzia; Halo- rella s еденш. * Mytilus” problematicus* з в Mytilus ” problematicus. Halobia spp. Halobia zitteli, H. spp. a: Halorella sp. ; ; | Myophoria sp. ; Halobia sp. piriferis doe deine d g Daonella indica . Spiriferina cf. fragilis ; Rhynchonella sp. ; Terebratula sp. : * Myalina? (Maoria?) problematica Wilckens (in MS.), It will appear from the above that crust-movement, commencing in Rhaetic times, greatly displaced the coast-line in New Caledonia, which remained raised above the sea-level until near the close of Jurassic times ; while in N Jurassic without much permanent geographic change. Near and probably west of both these areas of marine deposition there was a land-mass, and in the minor fluctuations of the strand-line across the coastal shelf there were formed intercalations of fresh-water plant-bearing beds in the the forms other than Ж жш are represented in the Malay поду Himalayas, or Alps, except Pseudomonotis ochotica, which extends fro Timor to Japan and eastern Siberia, and under the name of P. Вст е рот is found at intervals down the Pacific Coast as far south as the Republic of Colombia. The northern ee prima channel of migration was, there- fore, nee during Upper Triassic tim Leaving the coastal regions, we те fo consider the pues of ed Australasian po dem surface during the Mesozoic times, basing o discussion on Dr. Walkom's (1918, &c.) эй work, ре аі 3 40 Transactions. that of Dr. Arber (1917) for New Zealand. To the former is due the Triassic and Jurassic maps here given (with minor modifications). Extensive fresh-water deposits formed in the neighbourhood of Sydney, comprising the extensive conglomerates, shales, and sandstones of the Narrabeen Hawkesbury series, of probably early and middle Triassic age. The basin of deposition probably discharged into a northward- extending gulf ancestral to the Tasman Sea. In Rhaetic times the area of sedimentation increase A second basin formed in south-eastern Queensland (the Ipswich series), and another, probably in Tasmania, discharging into the same gulf, which seemed to have reached a maximum extension at this time, for the deposition of the Rhaetic lacustrine Wianamatta shales above the Hawkes- y sandstone was interrupted near its close by a brief incursion of the. sea passing from this gulf as far westwards as the Blue Mountains. Here it deposited an argillaceous limestone containing a small group of ostracods and foraminifera, “a brackish or estuarine fauna having a curious inter- mingling of Rhaetic and Lower Jurassic types with others more propery. referable to the Upper Palaeozoic of Europe" (Chapman, 1909).* It is interesting to note the close approximation in time between this temporary ingression of the sea into eastern Australia and its regression from New Caledonia. Jurassic. The Jurassic period witnessed a wider extension of these lacustrine deposits. Walkom (1918) shows them as stretching from the Cape Yorke Peninsula southwards and to the northern parts of South Australia and of New South Wales. He is of the opinion that this basin discharged A second basin is that comprising the Jurassic coalfields of Victoria and eastern Tasmania, which Walkom thinks may have drained into the Southern Ocean. The intervening region of the present Tasman Sea, he considers, was probably for the most part a land area, the coast of which lay east of New Caledonia (which was land till near the close of Jurassic times), but west of New Zealand, which formed the littoral zone across which the strand fluctuated (until the early part of Cretaceous time), producing ‘intercalated marine and fresh-water deposits, the latter predominating in the latter part of the period. The comparison of the work of Walkom on the Australian flora, and of Arber on that of New Zealand, briefly sum- marized by the writer (Benson, 1919), док a very general soia though with comparatively few forms common to the two regions general, also, the Australian Mesozoic flora ind four times as s species as t that of New Zealand, perhaps due to the unfavourable littoral habitat of the latter, and the modifications which have ensued during their migration back and forth with the fluctuation of the coast-line. The general conditions indicated continued until the commencement of the Cretaceous period, the highest plant-beds in this series in New Zealand being those "t Waikato Heads, which Arber considers of Neocomian age: in these, associated with С Cladophlebis and T'aeniopteris, appear angiospermous leaves (Artocarpidium), which seem to be more related to the figs than to any other modern plants. Of about the same age as these are the much larger floras зис by Walkom (1919) from the Burrum and * It is perhaps more dian x ойе. that the time-range of the “forsininitero eee нА be analogous with that suggested by the fish-fossils in the Wainamatta series (Woodward, 1908). Brenson.—-Palaeozoic and Mesozoic Seas in Australasia. 4] Styx River beds in Queensland. The former contains thirty-six species, a typical Wealden association, free from angiosperms; the latter, which probably belongs to a slightly higher horizon, contains three angiosperms out of fourteen forms. Both these Queensland floras contain Micro- phyllopteris, a genus instituted by Arber (1917) to receive one of the forms present at the Waikato Heads. Walkom (1919), indeed, remarks on the resemblance of the Styx River flora to that of Waikato Heads. separated regions are nearly allied but not identical, but the similarity between them is probably sufficient to allow of this hypothesis." Further, 79. LOWER & MIDDLE : sZ, JURASSIC. - ге “2 тор with ih. РД 7 Md py T A piace: WA ЖО ө ue ЕЕЗ LACUSTRINE CONDITIONS: ? we must note his remark that “ as regards Antarctica, we have no evidence as yet of any Rhaetic land there, but in Jurassic times Graham’s Land may have been connected with New Zealand and also with Australia." Never- theless, we must recall that the Mesozoic flora was a remarkably cosmo- politan one, and accordingly the provincial affinities must be unusually clear to give much support to palaeogeographic hypothesis. Special interest attaches, therefore, to the form Linguifolium, which was supposed to belong to Glossopteris prior to Arber’s investigations.* It occurs in the *The late Dr. Arber concluded that “there is no evidence that New Zealand formed part of Gondwanaland "; but this, in Seward’s opinion, is open to question. "The leaves on which the genus Linguifolium is founded are, I believe, generically else Glossopteris or other members of the later flora of the Gondwana continent” (Seward, 1914, p. 39). Arber's (1917) reply to this criticism should also be noted. 42 Transactions. Rhaetic and Lower Jurassic beds in New Zealand, and Arber believes the genus is represented in the Rhaetic beds of South America and the Jurassic of Australia, though Walkom does not concur in regard to the last. It is perhaps also represented in the Noric beds of New Caledonia by leaves stated by Piroutet (1917) to be “ like Glossopteris." Leaving the land area, we return to trace the Australasian coast-line (Hauer) was a species of Hoplites (Berriasella). Upper Jurassic marine beds underlie the Neocomian plant-beds of the Waikato Heads, and this associa- tion, noted by Hochstetter and Cox, has been redescribed by Gilbert (1921). n the eastern flanks of the main ranges of the North Island, however, the upper portion of the older Mesozoic series is a considerable thickness of sparsely fossiliferous greywacke containiag Inoceramus. In the Gisborne district these beds have also yielded an obscure species of Turritella which appears to resemble (fide Marwick) some forms recently described by see and cite from portion of the manuscript of his unpublished paper, from which the following facts are culled. i e from be ls i ui Hills, in the South Island, apparently transitional between the Otapiri and Bastion series of Hector (see table, Benson, 1921, p.99). They contained, ith P A іа (?), and Ozytoma, some species of the Hettangian (basal as) ammonite Wachneroceras. At a higher horizon in the Bastion beds of the same region, the “ Plagiostoma " (Pseudomonotis ?) beds contain ure lammellibranchs and Rhynchonellidae with a *'Callovian " hynchone lel group u with forms of Phylloceras like P. passati and Р. malayanum, descri y Boehm from the Oxfordian (Upper-Middle Jurassic) of the Sula Islands. Trechmann’s provisional determination, cited by Gilbert (1921), of the fossils in the beds immediately underlying the * Neocomian” flora of Waikato Heads, a short distance to the north, shows the presence of the lamellibranchs of this group. A higher series of beds in the whia Harbour, of Kimmeridgian-Tithonian (Upper Jurassic) age, is characterized __ by Streblites ef. motutaranus, Perisphinctes spp., and Belemnites spp., which are also : " this fauna from beneath the Neocomian .. beds of Waikato Heads suggests the existence of a hiatus in the Jurassic series there Benson.—Palaeozoic and Mesozoic Seas in Australasia. 43 Etheridge (1920) from the Rolling Downs beds of Queensland, These rocks are termed the Awanui or East Coast series, and with them we may perhaps group the Manaia series of greywackes and conglomerates in the Coromandel Peninsula. The East Coast series are believed y Mr. Morgan nopsis sp. Haug (1911) reports the occurrence of these forms also, but most probable names to figured and provisionally determined fossils. In northern and south-western New Guinea the same series appears to extend. Boehm (1906) places the formations as ranging from Callovian to Lower Cretaceous, and has determined a number of better-preserved fossils. Of these, Macrocephalites keeuwensis a and М. keeuwensis B—y are believed to be the equivalents respectively of the first two of the above list of forms determined by Etheridge (Boehm, 1913). Phylloceras, Stephano- ceras, Sphaeroceras, Perisphinctes, Hoplites, Oppelia, Hamites (?), Belemnites Posidonomya (?), Inoceramus, and Rhynchonella aff. moluccana are also ards into the Sula Islands, Buru, , Timor, and Rotti, thus surrounding the Banda Sea. In these there is an indication of a dis- tinetively equatorial sea of about Callovian age, extension of the nized twenty European species with nine new forms, and considered the beds to be of Oolitic age. Crick (1894), as a result of his examination of the cephalopods, considered the beds as belonging to the Lower Oolitic period. He recognized species of Stephanoceras, Dorsetensia, Perisphinctes, and also Belemnites canaliculatus. Chapman (1904) supported this. Boehm (1907) remarked that the fauna was mid-European in its facies, and considered it to have been deposited in the Callovian extension of the equatorial Tethys. Haug (1911, p. 1045) believed the Bajocian and Callovian strata were represented here. Etheridge (1910) added a few more European forms to the list of Western Australian forms, which was completely tabulated by Glauert in the same year. Trechmann and Spath have noted * Kepplerites calloviensis, according to Haug (1911). E = . not available at the time Dr. Walkom w 44 ; Transactions. several features of community between the Western Australian fauna and that of New Zealand. It is interesting to note that Neumayr (1883) was of the opinion that Australasia and China were connected during Jurassic times into a single continental mass; but the discovery of the Malayan developments of the marine fauna has caused certain authors—e.g., Lemoine (1906) and Haug (1911)—to substitute the conception of an Australo-Indo-Madagascan con- tinent, over which there transgressed epicontinental seas into Western Australia and the Runn of Kutch during the Bajocian- Callovian epoch. Uhlig (1911) recognized in this a western development of the Mediterranean- Caucasian faunal province which merged into the Himalayan, of whic regarded as extensions the West African, West Australian, and New Zealand developments. These exhibit marked affinity with the faunas of the Japanese and South Andean provinces, though the contrast they show with the boreal and North Andean province prevents us recognizing a circumpacific geosyncline. The conclusions of Trechmann and Spath (1921) accord with this, and thus are not opposed to the hypothesis of a Jurassic land connection between South America and Australasia suggested by palaeo- botanical evidence, and, according to Hedley (1911), by modern biogeography. A further conception of Neumayr’s must also be considered. Hedle (1909) has restated it from a biogeographic standpoint as follows: “А meridional. crease in the earth’s crust produced in Jurassic times a gulf, which he called the Gulf of Queensland, whose western shore transgressed the present east Australian coast. Enlarging through geological cycles, this gulf grew into what we know now as the Tasman and Coral Seas. . . . As fauna e wever, continued subsidence to the east at last burst through the Melanesian plateau, a flood of active competitors must have swept in from the open Pacific. . . . With the opening of Torres t Straits, and the consequent outgoing current, the Queensland fauna was spread along north Australia to the Moluccas." Walkom (1918), in discussing the above, points out that the late Triassic me. . . . The gulf was probably more or less coincident with the present position of the Thomson Trough, but whether this trough is as old as Lower Mesozoic is difficult to determine.” His palaeogeographic map (1918, fig. 5) illustrated his conclusion that during Jurassic times the eastern coast of Australasia remained in much the same position as it was in during the Triassic period,* and to the south the Gulf of Queensland disappeared, or was very much reduced. * Piroutet’s conclusion concerning the Jurassic emergence of New Caledonia was rote. 7 ресс Benson.—Palaeozoic and Mesozoic Seas in Australasia. 45 Lyman Clarke’s (1921) study of the modern echinoderms of Torres Straits ‚ж d Gulf in Mesozoic time receives no support from the echinoderms. Wha may be called the original echinoderm fauna was on the north-west side connected with the Pacific; its western shores also receded until the Great Barrier Reef was formed. This sea was invaded by echinoderms from the Pacific. . . . Continued subsidence on both sides led at last to the formation of Torres Strait, and the East Indian echinoderms then migrated eastward and southward to the Queensland coast, where they mingled with Pacific immigrants. The latter, however, had not passed westward through the straits.” (Parenthetically, we may here recall the strong physio- graphic evidence of the westward retreat of the Queensland coast to its present position in comparatively recent times: cf. David, 1911.) Late Jurassic, Lower and Middle Cretaceous. We have already seen that the marine sequence of earlier Mesozoic beds in New Zealand was concluded by the Tithonian or uppermost Jurassic beds at Kawhia, and the possibly early Cretaceous Inoceramus-bearing greywackes of the east coast, and, further, that the commencement of allied to Pholadomya elongata and Exogyra couloni, which occur in the lowest Cretaceous beds of southern Europe. This coal-bearing series is followed movement. Jurassic-Cretaceous passage-beds are known also in several localities along the north coast of Dutch New Guinea, and closely resembling these are coeval beds in the Sula Islands characterized by Phylloceras strigile, Lytoceras, ` Bochianites, Streblites, Hoplites, Himalayites, Nucula, Mytilus, and Anopaea, a facies recalling that of the Spiti shales. Besides these are rather widespread foraminiferal limestones passing into Globigerina marl with belemnites, and known as the Buru limestone. It occurs in Buru, Ceram, Misol, Eastern Celebes, and Timor. * Review by F. A. B. in Nature, 4th August, 1921. + Concerning this species Etheridge (1892, p. 471) remarked that it “ has a strong resemblance to a small and peculiar species, T. semiornata, figured by A. d'Orbigny from the Cretaceous rocks of South America. 46 Transactions. Far more extensive than the above are the marine sediments of the Rolling Downs formation in Australia, concerning which ideas at present are somewhat uncertain. As recently as in 1914 Professor David, in summarizing their occurrence, declared them to be a Lower Cretaceous series of glauconitic sands and clays, almost wholly of marine origin, passing conformably downwards into fresh-water Jurassic rocks, and Ke pitt m Hte #7 , SUR PERIODS ^ ` lbs аду же чань О ||| LOWER & MIDDLE | ШЫН ORR SF | all C A | “ à D D E ^E IH : Li ct INE Ae | | Lo єл» ОА; ШШ Late Jurase to Mid. Crets Deep оо HH Exposures af sediment of origin indicated | т prs pe | | he | 1*9. a" "Tr; |, Based with modification | on Or Walkom's chart i ẹ [E] Land ' á go ES nari | [SS inao: Pacific Middle Cretaceous Sea фа l E Lote Juras: to Mid. Crets Rolling Downs Sea RE { see | ~ -li = Juras* to Basal Cret? Tethyan Sea Regression in Early Cretaceous times ti Etheridge (1902), after the examination of many cores obtained from artesian wells, felt that “ the time is not far distant when we shall be in a k up our continental Cretaceous system into a number of well-defined life-zones." ^ Gürich (1901) had previously discussed the age of a collection from these beds near Wileannia, and had referred them to the Jurassic on apparently inadequate evidence. Particular interest attaches, however, to the age of the Maryborough plant-bearing marine bed, which at first was classed with the ^ Desert Sandstones " as Upper Benson.—_—Palaeozoic and Mesozoic Seas in Australasia. 47 Cretaceous. Out of a described fauna of thirty-two species, eighteen occur in the Rolling Downs beds (Etheridge 18924, 1901 ; Chapman, 1913). with which the Maryborough bed has since been correlated. Walkom (1919) has shown that the flora of the Maryborough bed appears to be an Upper Jurassic one, being free from angiosperms, while that of the immediately overlying Burrum beds is of the Neocomian type. e therefore concludes that the Maryborough marine fauna will probably have to be considered as Upper Jurassic, and to this period we may thus tentatively refer the lower portions of the Rolling Downs series. In north-western Queensland there are widespread water-bearing lime- stones which Dunstan (1920) considers to be of fresh-water origin and Jurassic age, and to lie conformably beneath the Rolling Downs series. On account of the lithological character of these rocks, Woolnough (1912) has compared them with the adjacent partly silicified Lower Cambrian limestones. Danes (1916), however, states that he has found foraminifera in them, the specimens being referred to Operculina, Globigerina, Nodosaria, Haplophragmium, Cristellaria, and Textularia, a group of genera which give little indication of the age of the formation. Dunstan (1916) is disposed to agree with Jensen (1914), who suggests that these are merely Tertiary fossils occurring just like the adjacent but rare accumulations of Tertiary mollusca— namely, in small “ pockets " in the surface of the Cambrian (?) limestone. Referring to the fauna of the Rolling Downs beds, among the most distinctive fossils are certain foraminifera, chiefly Lituolidae, and the endemic lamellibranchs Maccoyella, Pseudoavicula, and Fissiluna, and the large cephalopods Crioceras and Ancyloceras. According to Etheridge n’s (1902) enumeration, the fauna contains 234 species, of which crispi, a world-wide Cenomanian form, with species related to other types in the Cenomanian series with which both Haug (1911) and Woods (1917) correlate the upper part of the Rolling Downs beds. The report (Hector, 1886) that Belemnites australis, a Rolling Downs form, occurs also in the Jurassic beds of the Kawhia and Waikato Heads is the result of a mistaken identification, but B. aucklandicus in the same series is very like B. liversidgei in the Rolling Downs beds (Etheridge, 1892a, p. 491). In regard to the origin of this fauna, Professor David (1914) and Mr. Dun (1914, 1919) believe that it was developed in an extensive but shallow epicontinental sea, which, extending out from the region of the present Gulf of Carpentaria, covered nearly a third of the continent. It is possible, as Haug suggests, that the transgression may have been more extensive in Middle Cretaceous times than in those immediately prior thereto, but of this there is not yet sufficient proof. The Maryborough о that Mr. Etheridge frequently stated his method of nomenclature, which accords with Uhlig's (1911) principle: “I do not consider it wise to identify a form with a i ds of miles distant unless the agreement is so close as to leave no room for doubt as to their identity." 48 Transactions. fauna is so like that elsewhere in the Rolling Downs series that it appears preferable to consider the former as deposited not in a separate gulf, as Walkom indicates (1918), but as the extension of the sea into and beyond the northern depressed area wherein Jurassic sedimentation had taken place. There is also some doubt (expressed notably by Ward—private communication) as to whether this Cretaceous sea reached as far south as the bight where Cretaceous fossils have been found in strata concealed by overlying Lower Tertiary beds. Ward draws attention to the present absence of any connecting strata crossing the broad area of ancient gneisses and other crystalline rocks between these and the main mid- continental development. That such a connecting zone may have been present, and has now been very largely stripped off, laying bare its foundation, is suggested by the occurrence at Eucla, in beds beneath the Tertiary cover, of typically Rolling Downs genera such as Maccoyella corbiensis, Aucella hughendenensis, and Fissiluna, reported by Maitland (1919). This is indicated on the chart, which is a modification of that suggested by Walkom (1918). In this great mediterranean the fauna developed many endemic forms sharply distinct from those on the north- west coast of the continent, as wil be shown. We may here record parenthetically the recent discovery by Talbot and Clarke (1918) of glaciated boulders in these rocks in the south-east of Western Australia, thus confirming an earlier report of a similar discovery by H. Y. L. Brown (1905) in the northern parts of South Australia. Each of the authors considers the glaciation to be of late Cretaceous age, or possibly early Tertiary (see also David, 1907). : ollowing the Cenomanian period of greatest flooding, there seems to have been an almost complete withdrawal of the sea from central Australia, and a slight crust-flexing and erosion took place before the that in Upper Cretaceous times central Australia was mostly emergent, while the sea was transgressing on to the marginal regions of New Caledonia d occurrence of Cretaceous rocks in Western Australia is quite . different from the above. At Gingin is a small area of chalky limestone, are also species of Inoceramus and ammonites, h in the Rolling Downs beds (Etheridge, 1913). Chapman (19174) has recognized 134 species of foraminifera in this rock fifty-nine of which are restricted to the Cretaceous in other parts, chiefly Europe, and of these a fairly large number have hitherto been known only in the Gault (Albian) formations. He therefore concludes that the fauna is, on the whole, not Lower Cretaceous, but Albian-Cenomanian. It thus probably retreat of the sea from its central region. Twenty of the species recognized have also been recorded by Howchin (1893) from central Australia. Near Port Darwin Belemnites beds stated to be of “ Upper Cretaceous "' age occur їп " numerous pockets and patches mostly of slight area along Benson.—-Palaeozoic and Mesozoic Seas in Australasia. 49 the coastal fringe " (Jensen, 1914). They are composed of cherty sand- stones, and contain numerous radiolaria (Hinde, 1893). They appear to overlie a Rolling Downs series, of which, however, no examples can be In western Borneo sandstone, claystone, and marl occur, characterized by the Cenomanian ammonite Cnemoceras, and adjacent to these are coeval plant-bearing sandst d limestones with Crbitolina concava. Similar lime- Cretaceous transgression. In the south, on the Strickland, a tributary he Fly River, Inoceramus concentricus has been obtained (Etheridge, 1889). More recently a considerable extent of these rocks has been found (by the Lorenz, 1907, expedition ?). Professor David (1914) concludes that the Cretaceous transgression probably covered the whole island. The sediments are steeply dipping, and mostly dark-green caleareous and glauconitic (?) sandstones and limestones containing Inoceramus, Gryp Modiola, Aviculo n, Protocardium, Cidaris, Belemnites with Alveolina and Orbitolites. According to Rutten (1914), however, the two genera of foraminifera are in the Lower Tertiary rather than in the Cretaceous beds. It is the limestone containing these that is so widely distributed throughout the mountain-chain of western New Guinea, and possibly extends into the eastern half of the island. (See second footnote, p. 27. No Middle Cretaceous rocks are known in New Caledonia, where Upper Cretaceous beds rest directly upon Lower Cretaceous, so that a long emergence must have been here the feature of Middle Cretaceous time. The same is true in regard to the North Island of New Zealand ; but that some depression of the New Zealand area occurred at this time is shown by the entry of Middle Cretaceous sea into the north-eastern corner of the South Island. Here the basement beds rest on an unevenly eroded surface of intensely folded (probably) Lower Mesozoie rocks; and, as there is no evidence of folding during the Mesozoic times prior to the commencement of the Cretceous period, this very intense orogeny must have occurr uring Lower Cretaceous times. The Middle Cretaceous sands and clays have a maximum thickness of 8,000 ft., and contain sixteen described species of fossils, mostly lamellibranchs, including Inoceramus concentricus, with the cephalopods Gaudryceras sacya and Turrilites circumtaeniatus, forms widely distributed in the Indo-Pacific Lower Utatür beds, and pro- bably contemporaneous with the Albian beds and the upper part of the Rolling Downs formation (Woods, 1917). Unless Marshall’s (1917) sug-- gestion is correct—viz., that these beds are not really Middle but Upper Cretaceous—or Thomson’s (1919), that the immediately overlying flint limestones bridge the interval between these “ Utatür " beds and the over- lying chalky Danian (?) limestone, it would appear that a regression of the strand followed the deposition of these beds, and that the New Zealand area was emergent though quite unfolded during Cenomanian and Turonian times. 50 Transactions. Upper Cretaceous. As in New Zealand, so in the Malay Archipelago, the sea retreated early in the Cretaceous period and great orogeny followed, accompanied by the widespread intrusion of masses of peridotite, gabbro, and perhaps less Th basic rocks. e last remnant of the Tethyan sea was driven out from than that of Middle Cretaceous times. Though Van Es (1919) refers merely to the presence of basal Cretaceous rocks in Sumatra, Gregory (1916) but more noteworthy are the richly fossiliferous Senonian (Ariyalür) beds of south-eastern Borneo, in which occur the rudistid Radiolites with Ostrea, Trigonia, Nerinea, Strombus, Nautilus trinchinopolitensis, Acanthoceras, Scaphites, and a few brachiopods. In Celebes the Upper Cretaceous beds, which apparently merge into the Tertiary, are known as the “ Maroro formation." They consist of a generally unfossiliferous series of violet, grey-blue, yellow, or brown claystones, which are intensely folded and invaded by granite and other plutonie rock, by which they have been much metamorphosed. These are rather widespread on the west of the island, Cenomanian, but are also in the Upper Cretaceous series of the Alps, Gosau beds, and have allies in the Upper Cretaceous series of India), associated with indeterminate forms of Protocardium, Venus, Tapes, Psammosolen, Ostrea, and Cypraea, and with the foraminifera that appear to have Tertiary (Oligocene-Miocene) affinities. Richarz concludes that the whole series is of Upper Cretaceous age, but that it is a curiously provincia fauna, and in particular is unrelated to that in the south of New Guinea. Gregory and Trench (1916) have described the Upper Cretaceous (?) coral usi ^ ; : ctinacis aensis from a limestone pebble obtained high up the Fly River with numerous others containing Eocene forms r east, near formity on the Eo-Cretaceous coal-measures. They contain Acanthoceras and Douvilleiceras, with Kossmaticeras loganianum and K. cumshevaense. _ Which are found in the Middle Cretaceous rocks of Queen Charlotte oe Island (British Columbia). The last two forms are, however, also found Benson.— Palaeozoic and Mesozoic Seas in Australasia. 51 in the Senonian beds of Seymour Island, Graham's Land, together with K. bhavani and Trigonia arctica, which also occur in the St. Vincent beds, where is Puzozia gaudana, also found in the Senonian beds of Peru, Pondicherry, and South Africa, with other widespread Senonian genera not specifically identified ; nor does Piroutet (1917) discuss the affinities of the fauna, which, however, seems to be clearly representative of the general Indo-Pacific Upper Senonian fauna. This fauna is also represented in New Zealand, spreading over the greater part of the North Auckland Peninsula, the eastern portion of the North Island, the northern and rather to the south of the central portion of the east coast of the South Island. The presence of Gryphaea and * Senonian " types of bryozoa in the Chatham Islands, as reported by о N С] Lond Area x УД] Upper Crets(and Tertiory) Freshwater - eds a = Üpþer Crets (chiefly Senonian ) Sea ond, exposed marine sediments - -+ = , Dieseldorff (1901), may indicate an Upper Cretaceous transgression of the sea over the ancient land-mass of that region, but the information available does not permit us to decide whether the region remained continuously submerged until Middle Tertiary times, or whether some emergence of the land occurred in the interval, the late Cretaceous or early Tertiary times. The investigations of Woods (1917) on the fauna of the north-east of the South Island of New Zealand has shown that absence of any noteworthy community with the Australian Cretaceous fauna. Trechmann identifies some shells with the “ Natica ” variabilis new species. 52 Transactions. The strong affinity between the contemporaneous fauna of New Cale- donia and New Zealand is shown by the presence of the following common genera: Kossmaticeras, Baculites, Lytoceras, Anisoceras, Gaudryceras, Trigonia, Arca, Cardium, Alaria. Very striking, however, is the close affinity of the New Zealand fauna with that of Graham’s Land, Patagonia, Chile, and Peru. Woods (1917) recognized only two or three forms identical with South American species, and four with close affinities thereto. Trechmann (19174) added to these, and Wilckens (1920, 1922), while revising some identifications, added a dozen species with close relatives among the South American beds. We ret ‘ Malletia cymbula, Calliostoma thomsoni, C. wilckensi, Lahillia sp., Trigonia antarctica, Т. pseudocaudata, Kossmaticeras haumuriensis, Natica ingrata, E А amuritica, Cryptorhytis vulnerata. Dr. Marshall’s investigations of the fossils of the North Auckland Peninsula add further evidence of this affinity. So great is it that Wilckens (1920) concludes that New Zealand, Graham’s Land, and Patagonia formed part of the southern coast of the Pacific Ocean in Senonian times. the distribution of the modern flora and fauna. At the same time, the striking difference between the Cretaceous faunas of New Zealand and Australia indicates that at the close of Mesozoic times there was a marked difference between the relations of South America to New Zealand on the one hand and to Australia on the other, as has been the case, apparently, In succeeding periods up to the present. Post-Cretaceous. The circumpacific connection, however, broke down during the Tertiary period, but the stages by which the separation was affected will not be cussed here, though a few remarks may not be out of place. Divergence pe wi Eocene periods, after which a varied series of Eocene sediments were laid down in three stages, in the last of which the island was completely submerged. _ These contain angus i Orthophragmina and Lithothamnium, the last two being genera well known in rocks of this age in New Guinea (Rutten, 1914). This transgression * Trechmann thought this to be identical with Aporrhais gregaria. Benson.—Palaeozoic and Mesozoic Seas in Australasia. 53 was followed by the Jo intense orogenic movements of which there is record in the island, which the vast intrusive masses of peridotite came into place. These movements were doubtless сеа with those occurring in Miocene times throughout the outer arc of the Malay Archi- pelago which gave rise to intense folding and alpine overthrusting.* In New Zealand, on the other hand, the Senonian beds are followed by Danian (?) limestones, as cow by Chapman's 1910 work, and these by a succession of Tertiary beds, for the most part without marked unconformity, though iind is some evidence of block-movements, warp- ing, and consequent local transgressions and regressions during that period. In the North Auckland Peninsula, however, the great disloca- tion of the Upper Cretaceous and early Tertiary beds, clay-stones, hydraulie limestones, &c. (into the latter of which the serpentines of Wade have been injected—jide Bartrum), contrasted with the lesser disturbance of the later Tertiary beds, suggests that this region has come within the influence of the New Caledonian early Tertiary orogenic movements. The abundant fauna exhibits but little community with that of the Tertiary rocks of southern Australia. In regard to the brachiopods, Thomson (1918) concludes that those in Australia, New Zealand, and South America originated on the coast of the portion Gondwanaland that then existed, and were grouped into different. faunal provinces by the early Cretaceous crust-movements, for in each area where Recent forms occur they are the diminished remnants of the * Miocene " forms in that area, and give no evidence of communication since that period with adjacent areas. “ The communication between New Zealand and Antarctica and New Zealand with the migration of the brachiopods may have occurred as early as in the Cretaceous, and apparently was earlier than the connection of Antarctica with Australia," A like conclusion is reached by Marshall and Murdoch (1920), who state that “ ће present molluscan fauna of New Zealand seems to be a remnant of a fauna of early or middle Tertiary age." While, Ее there is some indication of an influx of South American ^ Міос forms into New Zealand (when the New ҳай fauna was вк more allied to that of Patagonia than of Australia), it has been completely isolated ever since. Thus it would appear as if at the close of Mesozoic times the 8 have had very diverse histories during the Tertiary period, to have been submerged, warped, aerated. or folded at different times, and to have developed provincial faunas with little intermigration. Little has yet been done which permits us to correlate the Tertiary records in these various regions. The end of the Mesozoic period thus appears to be a fitting point to close this attempt to trace in broad outlines the С tot evolution of Australasia, and the source of its successive marine faunas continuation of the same orogeny occurred т! the archipelago at the close ae Pliocene time, but was then chiefly in the nature of vertical block-movements, though with a considerable кобине! displacement also т бан 1919, 1921). 54 Transactions. ACKNOWLEDGMENTS. The writer is indebted chiefly to Professor Sir Edgeworth David, F.R.S. not only for his introduction to geological science, but for the discussion of many of the points raised during the compilation of this paper. is also анна to Dr. Walkom’s remarkable work оп the Mesozoic flora, and discussion of Australasian Mesozoic palaeogeography, which, with Piroutet’s work on New Caledonia, that of Arber, Trechmann, Woods and Wilckens on New Zealand, and his own on the Carboniferous and Devonian fossils of Australia, and on the recent advances in the geology of New Zealand, suggested the present paper. He has also received the friendly help in various ways of Messrs. F. Chapman, A. G. Maitland, Loftus Hills, L. K. Ward, Morgan, Professor Richards, Professor Elder, G. E. Harris, and several others, to whom his best thanks are due. ADDENDUM. Concerning the relationship of the **Permo-Carboniferous" fauna of Western Australia to that of the East Indies, reference should be made to the following paper read before the Royal Society of New South Wales in December, 1922, by Mr. W. S. Dun and Professor Sir Edgeworth David: * Notes on the Occurrence of Gastrioceras at the Irwin River Coalfield, Western Australia, and a Comparison with the so-called Paralegoceras from Letti, Dutch East Indies." Lisr or REFERENCES CITED. (The contents of works marked with an asterisk have been ascertained from sourees other than the original.) ABENADON, E. е; 1919. Aequinoctia, an Old Palaeozoic Continent, Jour. Geol., vol. 27, на Е. С. 1910, Тһе ерте Unity of Eastern Australia, Proc. Roy. Soc. 44, pp. 420-80. —— 19104. Report o n the Forbes Parkós Goldfield, Geol. Surv. N.S.W., Min. Resources, —— 1913. ` Report on the Cobar Copper and Goldfield, ibid., No. 17. —— 1914. The Older Palaeozoic Sediments of New South Wales, N.S.W. Handbook r the Brit. 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Soc. W. A 3, рр. TUN R Sa In ; Presidential Address, Trans. Soc. S. Aust., vol. 1892. и Cambrian Fossils of South Australia, че нч Roy. ‘Soc. S. дав: Pi "s. рр. 1 ——— (with туе Be W. E. and Howocnis, W.) 189 egre of Glaciation at Hallet’s Cove. Rep. Aust. Assoc. Adv. js ., vol. е, рр. —— (and Warr, J. A.) 1896. Report of the H eaen oe into “Central Australia, pt. 3, Geology and Bons p pp. 46-60, à y — . 1901. А Refutation of the Doctrine of mia (Presidential Address, Sec- n C), Rep. Aus. Assoc. Adv. Sci., vol. 8, pp. TAvroR, T. G., 1910. The Archaeocyathinae fro from the Cambrian of South Australia, Roy. Soc m. No. 2, pp. 55- .8.A —— m обам of Archaeocyathinae from South Victoria Land, British Ant- ic Expedition, 1907-9, Reports of Scientific Investigations, Geology, vol. 1, 935540, THALE, EX 1919. A Contribution to the Palaeozoic Geology of Victoria, with Special Reference to the Distriets of M ee and Nowa Nowa respectively, Proc. Roy. Soc. Vict., vol. 32, pp. 6 THOMSON, J. Ar 1913. Mate gp m а кану of New Zealand, N.Z. Geol. rv. и s e IIR. БШ ifc a ds a the Australasian Antarctic Expedition, IE: t $ са vcn pp. 51-6 — — 1919. The Geology of the Middle Clarence and Ure Valleys, East Marlborough, Tra ма Inst., vol. 51, pp. 2 Тп, С. E. 1919. The Petrolo ee the Granitie "aer of Cape Willoughby, Kangaroo sland, Trans. Roy. Soc . S. Aust., vol. 43, рр. Тагенмах, = Т, ИИ. The Age of the Maitai Нан Geol. Mag., dec. 6, 4, pp. 5 —64. И мы "The Cretaceous Mollusca of New Zealand, ibid., pp. ЛЕ с 1917в. The Trias of New Zea land, Quart. Jour. eol. Soc., 78, pp. Т —— сс und SrATH, L.) 1921. The Jurassic of New Zealand patet Abs. Proc. бе. ос. ee т H., 1907. Note on Glaciation in Tasmania, Rep. Aust. Assoc. Adv. Sci., vol. 11, p. 1909. ди ино of the Geology eae Ann. Rep. Dept. Mines, Tasmania. Unis V., 1911. г ee n Reiche des Jura und der Unterkreide, Mitt. d. Geol. Ges Wien , Bd. 4 Van Es, L. J. C ` See ак Ез (Van). 62 Transactions. ram ‘oa 1899. Trias i in n Sumatra, vh deutsch. geol. Ges., vol. 51, pp. 1-60. Zür Geologi i » Beobachtungen und Studien, Geol. und Pal. Waroorr, C. . The Cambrian Faunas of China, Research in China, vol. 3. arnegie Institute, Washingto — 1916. The Cambrian Faunas of Basto Asia, Smithsonian Mis. Collection No. 64. Warsow, А. В. 1913. Василаи Geology of the Permo-Carboniferous Ves n the Maitland Branxton District, Proc. Linn. Soc. N.S.W., vol. 38, pp. 1 —— 1915 5-19. ра Floras of Quee nsland, Kaen Geol. Dare: Publications, Хо. 252 (1915), No. 259 (1917), No. 263 (1919). —— ees pe pge of the Fed x Mesozoic Rocks of egi Proc. Linn. 43, pp. 3 —— 1919. | Queensland gol Pi Ploras Preia Address), Proc. Roy. Soc. Queensland, 907. Jahrb. f. Min. Beil.-Bd. 24, pp. 161-220. T 1916. Die permischen Echinodermen von Timor, Teil 1, J. Wanner's Paldonto- logie von Timor, Lief. 6, pp. 1-329. ss TO "Ime ro a von Neuseeland, Geol. Rundschau, vol. 8, pp. 143-161. —— 1919. Die Geologie von Mittel Celebes nach den neveren fien rn не E. C. Abenadons und дё ылын Geol. Rundschau, vol. af p. 45-62 WEGENER, A., 1922. The e Origin. of Continents and Ocea ns, Discovery, vol, 3, pp. 1 WurrgLAw, О. A. L., 1916. The Topography, Spee ii and Mines of the Wood’s "Point No. pp. 7-9. WILCKENS, = 1917. Die Geologie von i AR Geologische Rundschau, vol. 8, —— 1920. Ens Bivalven-fauna des Obersenons von Neu-Seeland, Centbl. für Min., рр. 290-9. eme: "um The Upper Cretaceous Gastropods of New Zealand, N.Z. Geol. Surv. Pal. aL о. 9. с ТИ Conteibaibons to the Palaeontology of the New Zealand Trias, N.Z. Geol. ure. Pal. Bull. No. um Woops, H., 1917. The Cre ous Faunas of the ааа Part of the South Island a New Zealand, ^N. Z. Geol. Surv. Pal. Bu Woopwarp, A. S., se tag Fauna fom the Mansfield District, ictoria, Nat. Mus um, Melbourne, Mem. No. 1. —— 1908. The Fossil Fishes of the ig Sector sont Series at St. Peter’s, N.S.W. Geol. v. Pal. Mem. No Surv. о. 10. WoonWonvs, J.-B., 1912. Geological Expedition to Brazil and Chile, Shaler Memorial Bull. Mus. Comp. Zool. Harvard No. 56 (i), Geological Series, v RU tie = o" imm "The Continental Origin of Fiji, Proc. Linn. Soc. N.S.W., 500-40. YABE, H., 1915. Einige Bemerkungen über die Halysites-Arten, Science Reports of the Т, ohoku Imperial University, Second Series (Geology), vol. 4, pt. 1, pp. 26-37. Marwick.—Genus Glycymeris in Tertiary of New Zealand. 63 Arr. 2.—The Genus Glycymeris in the Tertiary of New Zealand. By J. Marwick, M.A., New Zealand Geological Survey. [Read, by permission of the Director of the N.Z. Geological Survey, before the Wel- lingion Philosophical Society, 12th October, 1921 ; received by Editor, 2nd December, 1921; issued separately, Ist February, 1923.] Plates 1-7. GLYCYMERIS Da Costa, 1778 (= PEcTUNCULUS Lamarck, 1799). Tue genus Glycymeris, appearing first in the Cretaceous, is widely spread throughout the Tertiary strata of the world, and exists in the Recent seas of the West Indies, Britain, India, New Zealand, Australia, and western America. It is a shallow-water shell, ranging, according to Woodward, from 8 to 60 fathoms, and rarely to 120 fathoms. Consequently the fossi occurrence is generally in fine conglomerates, sandstones, or shell-beds. Suter seems to have had an erroneous idea as to which is the anterior of the shell. Thus in his description of both G. laticostata and G. modesta (1913, pp. 851 and 852) he says the beaks curve “ forward." This is not the case. The curvature, though generally slight, is towards the rear. 16 will not be out of place to quote Fischer (1887, p. 978): “ The impression of the anterior adductor is subtrigonal, that of the posterior adductor is subtrapezoidal, and limited in front by a projection or ridge which is directed towards the umbones and more elevated than the ridge limiting the rear of the anterior adductor; the pallial line at its junction with the impression of the posterior adductor forms a small sinus; the beaks are slightly inclined to the rear." her noteworthy features are— (1) Worm-borings and malformation are very common on the osterior. (2.) The ribs are narrower on the posterior. raised than those of G. concava, a feature seen only in well-preserved i ea differing only in their strongly-raised ribs and wide interstices. In this respect they approach the laticostata group, and may represent the ancestor 64 Transactions. of those shells; but it seems more probable that the separation took place at an earlier stage than that of G. selwynensis. The Tertiary species fall into three well-defined groups :— I. The laticostata group, characterized by— (a.) Raised rounded ribs (a few exceptions). (b.) An equilateral outline, circular to dorso-ventrally oval. (c.) Closely set ligamental grooves on a highly inclined area. (d.) Valves little inflated, beaks low (exceptions). (е.) Teeth small and numerous until invaded by the area. П. The huttoni group, characterized by— a.) Linear interstices between low, flat ribs (exceptions). (b.) An inequilateral outline, subquadrate to obliquely ovate. (с.) Well-spaced ligamental grooves on a moderately inclined area. (d.) Valves inflated, beaks prominent. (e.) Teeth large and strong. ome specimens of this group present an external resemblance to Cucullaea, but they can always be recognized by their rounded shoulders. ПІ. The Axinea group, characterized by— (a.) Almost smooth surface, under a lens showing very fine radial riblets over the whole disc, superimposed upon a system of narrow obsolete ribs corresponding to the fine crenulations on the inner ma gin. Sometimes these ribs are shown only on weathering. (b.) Outline circular to ovate. (c.) Many closely set ligamental grooves on a highly inclined area. (d.) Valves inflated, beaks moderate. (e.) Teeth numerous and fine. The fine secondary riblets so well developed in this group often appear in other groups, but then only on a small portion of the disc. This group corresponds to Azxinea of Poli, 1791, used as à separate genus by Cossmann, Angas, and others; as a section of Glycymeris by Fischer and Adams, and as a synonym of it by Zittel, Dall, and Suter. The three divisions of the New Zealand Species are probably of sub- generic value, the first being Glycymeris s. str., the second a new subgenus, and the third Azinea. The definite classification into subgenera has not been carried out in this paper, as no specimens from abroad were available for comparison. E DESCRIPTION oF SPECIES. of the shell. The ribs on the latter are narrower and more rounded, and the interstices are wider than those of the former. Trans. N.Z. Inst.} Vor. 54. . Face p. 64.) Laticostata Group. Fic. 1.—Glycymeris laticostata (Q. ee 7.), right valve. as. 2, "US Lucis sp. A. (Uruti.) Fics. 4, «m Glycymeris есче n. idi Holotype. Frias. 5, —бїусуте sp. В. irri D a. T. Fic. 8. depu traversi eect тежег. PLATE 1. PLATE 2. Trans. N.Z Inst., Vor. 54. * Huttoni Group. Fras. 1, 6.—Glycymeris cordata (Hutt.). Lectotype. Fras. 2, 3.—Glycymeris kaawaensis Be Holotype. _ Fires. 4, 5.—Glycymeris het aunt à n. LA Holotype. PLATE 3. Trans. N.Z. Inst., Vor. 54. ho» i > ЧАА ду Br TES * 222 = Huttoni Group. Fic. 1.—Glycymeris rapanui wiensis n. sp. Holotype. Fic. 2.—Glycymeris huttoni Marwick. Lectotype. Fig. 3. —Glyeymeri ris ә na Suter. Holotype Fic. 4.—Glycyme nsis n. Sp. Holotype. Его. 5. ahve pee n. sp. Holotype. PLATE 4. Trans. N.Z. INsT., Vou 54. Huttoni Group. sp. Holotype. rwick. Lectot: Holotype. type. Ma jensis n. Holotype. rapanuien hutto —— € i eris manaiaensis n. s ‘lycymeris robusta n. sp. Fie. 1.—Glyeymeris 15 5 Trans. N.Z. Inst., Vor. 54. PLATE 5. 2 Ахіпеа Group. Fic. b —Glycymeris callag hani n. sp. Holotype. Ето. 2.—Glycymeris eae узы Holoty Fic. а wach аъ hrim Holot DE. Fie. 4.—Gh insane 8 Pais туа д вр. Holotype. Fie. 5.—Glycymeris waipipiensis n. sp. Holotype. Fic. 6.—Glycymeris modesta (Angas). Left valve. TRANS. N.Z. Inst., Vor. 54. Axinea Group. п. sp. Holotype. callaghani st n. sp. Holotype. po дечын. n. id Holotype. treliss n. sp. Boe { pipi ensis n. Sp. Fie. 1.—Gl в. 2.—Gl Fig. 3.—Gl Fig. 4.—Gl в. 5.—GL Fie. 6.—G Holotype. Left valve. modesta aa as). PLATE 6. CORPORE. PLATE 7. Trans. N.Z: Inst. Vor. 54. Huttoni Group. River.) (Wangaloa.) Marwick. (White Rock 4.—Glycymeris concava Marshall var. ris huttoni ymeris вр. (Akuaku.) . 2.—Gl Fie. 3.—Glyc Fias. 1, О. Fr Marwick.—Genus Glycymeris in Tertiary of New Zealand. 65 Localities :-— Holotype, Recent. 206—Shakespeare Cliff, Wanganui. Castlecliff, Wanganui (Marshall). Waihi, near Hawera (Marshall and Murdoch). Mouth of Ruamahanga River, 749 (in part) — Palliser Bay. (Fragment.) 81— Castle Point. (Shell slightly more peg ribs more regular.) 231—McLean’s, Ngaruroro River, s Bay. (An old, heavy shell, with beak and ribs like the Castle Point shells.) Tokomaru (Marshall) (A very worn specimen, but similar to those om Castle Point.) ? 649—Paparoa Rapids, Wanganui River. ?786—Mount Dona a inflated than usual: Sp ? 246—Cape Rodney, Auckland. (A distorted specimen.) The locality-numbers are those of the New Zealand Geological Survey (see N.Z. Geol. Surv. Pal. Bull. No. 1). It wil be noted that positive identification could not be made in the last three localities. The shells are undoubtedly of this group, but may represent different species. MeCoy (1875, p. 26, pl. xix, figs. 9-13) has described and figured specimens attributed to this species from the “ Lower Tertiary " of Bird Rock, Geelong; Mount Eliza and Mount Martha, at Schnapper Point. ` With reference to this, Tate (1885, р. 137) says, “ The identification of the fossil and the living species has been disputed by Mr. R. M. Johnston. The material at my command is not sufficient to permit me to express an opinion, though I have little hesitation in accepting Professor McCoy’s determination in respect to the fossil represented by fig. 10. Unfortunately, no material from Australia was available for this paper, and opinions based upon figures and descriptions are not so reliable as those based on the са specimens. However, the excellent figures of the Prodromus show no erence between the anterior and posterior ribbing, so the specific identity of the two shells is open to doubt. Records to be eliminated from N.Z. Geol. Surv. Pal. Bull. No. 8 :— Page 25. Manaia Beach. These shells belong to the huttoni group, and are here pd = а new species = (7. manaiaensis. = G. manaiaensis. Page 30. . Starborough Creek = d. manaiaensis. . Moonlight Creek — G. manaiaensis. . Motunau beds, Weka P . Motunau beds, Weka Pass = G. manaiaensis. . Motunau beds, Weka Pass = G. manaiaensis. . Motunau beds, Lower DANS — G. manaiaensis. . Motunau beds, Mid-Waipar . Kakahu — G. subglobosa (distorted). . Pareora, loe. 458 = G. huttoni (worn). . White Rock River, loc. 165 — G. huttoni (worn). . Bed К, tuffs south of Cape Wanbrow = Venericardia sp. Lower Awatere, loc. ass = G. manaiaensis. = G. manaiaensis. (common in this locality). 66 Transactions. In the cases cited above, as well as in the rest of this paper, the specimens have actually been handled. In the case of many other occurrences noted by Suter the specimens are missing from the Geological Survey collections ; in fact, no undoubted specimen of G. laticostata has been seen from strata older . than Wanganuian Cardium brachytonum Suter. N.Z. Geol. Surv. Pal. Bull. No. 5, p. 17, pl. x, fig. 5, 1917. The holotype on examination proves to be the cast of a Glycymeris, pro- bably laticostata. In the plate reproduced in Bulletin No. 5 the extremities of the hinge-area have been blocked out by a black background. Glycymeris traversi (Hutton). (Plate 1, fig. 8.) 1873. Pectunculus traversi Hutton, Cat. Tert. Moll., p. 28. 1914. Glycymeris traversi (Hutton): Suter, N.Z. Geol. Surv. Pal. ull. No. 2, p. 35, pl. iv, figs. 2a, 2b. In his description Suter gives the locality of the lectotype as Chatham Islands. The actual specimen in the Dominion Museum is labelled “ Loc. ? " However, the shell is almost certainly from Chatham, so Suter’s statement may stand. Buchanan’s drawing of this shell, reproduced by Suter (see above), does not represent accurately the wide interstices between the ribs. From the drawing one would take the shell to be inseparable from 6. laticostata ; this, however, is not so. The interstices are equal in width to the ribs, even at the margin of a 22 in. shell; thus the ribs in G. traversi are noticeably narrower than in G. laticostata. As to Suter's statement that the former is less inflated than the latter, the present examination does not bear out the observation. The inflation is practically the same in shells of equal size. There is very little difference in width between the anterior and Glycymeris lornensis n. sp. (Plate 1, figs. 4, 9.) : Shell medium-sized, suborbicular to longitudinally oval, equilateral ; i h i margin but become obscured in some specimens by strong growth-lines, the interstices rounded and narrower than the ribs ; margins weakly crenate ; hinge-plate deeply encroached on by the ligamental area, even in sma individuals, leaving three or four teeth on each side; ligamental area relatively large, steeply inclined, and very closely grooved by about 12 well-incised lines. Holotype in collection of N.Z. Geological Survey. Height, 40 mm. ; length, 40 mm. ; thickness, 14 mm. (one valve). Manwick.—Genus Glycymeris in Tertiary of New Zealand. 67 Material.—Six specimens, none of which is perfect. Locality. —Conglomerate band in Waiarekan tuffs about 50 ft. below the diatomaceous ooze, 400 yards west of Lorne Railway-station, North Otago. (J. Marwick.) The actual specimens are from an диер above the road near the base of the hill, apparently a slip from a This shell has a more аа: ia than G. laticostata ; it is also much smaller; so that young individuals of the latter may be distinguished by their little-developed ligamental area. In most specimens there is an inclination towards a subtriangular shape, and very little difference of width between the posterior and anterior ribs. Glycymeris chambersi Marshall. (Plate 1, fig. 7.) 1909. ээм. rers si Marshall, Subantarctic Islands of N.Z., 701. 1915. ичтеп ет а & G.): Suter, N.Z. Geol. Surv. Pal. Bull. No. 2, Suter thought that this e was the ovate form of G. laticostata, but 7 mm. wide; ‘while an equal area of G. laticostata has "de about 7. In addition, the rib-interstices on the middle of the disc are deeper, ul the shoulders are inclined to be narrower and more rounded. e type-material consists of a pair of valves (one of which is incom- plete), enelosing a larger right valve; the heights are 56 mm. and 62 mm. respectively. From the great eneroachment of the area on the teeth, the latter appears to be a fully-grown shell. This species seems to be intermediate between G. lornensis and G. laticostata ; it is nearer he these than to G. traversi ality.— Campbell Isla Holotype in School of iin collection, Otago University. Species not good enough for Full Description. Glycymeris sp. A. (Plate 1, figs. 2, 3.) From loc. 1041, Uruti, North Taranaki. Mr. L. ollected a shell of this group which, from its trigonal shape, wide ribs, and great inflation, especially towards the beaks, must be a new species. The imperfect state of the specimen, however, makes it advisable to withhold full specific designation. Glycymeris sp. B. (Plate 1, figs. 5, 6.) From Pakaurangi Point, Kaipara (Bartrum). This very small shell, of only 8 mm. height, has a thickness (one valve) of 3 mm., and so is much too inflated to be the young of any of the named species. qe is not necessarily a young shell. Until this point is settled by the collecting С more specimens, specific description and naming had better be held o 3* à 68 Transactions. Shells with Sculpture unusual for the Group. Glycymeris sp. C. In the Otago University Mining School collection there is a double- valved specimen, 60 mm. high and 55 mm. long, from an unknown locality. It is dorso-ventrally oval, equilateral, and has a closely-lined area. The sculpture, consisting of 40 flat obsolete ribs with linear interstices, is unusual for this group. The beaks are only moderately raised above the dorsal margin, but they are broad and prominent, the whole shell being considerably inflated. In the absence of a locality it would be unwise to а give the shell a specific name. i From a shell-bed about the horizon of the Wairarapa limestone, Pukenui, 5 south of Martinborough, the author collected the top half of a valve some- similar to sp. C, but larger and flatter. П. The huttoni Group. 1 Glycymeris huttoni nom. mut. (Plate 3, fig. 2; Plate 4, fig. 2; Plate 7, fig. 2.) T ыа. = TRI ЛАС: 1873. Pectunculus globosus' Hutton, Cat. Tert. Moll., p. 28 (not of owerby). 1897. Pectunculus globosus Hutton: Harris, Cat. Tert. Moll. Brit. 3 WB. te ; Le 1914. Hanat globosa (Hutton): Suter, N.Z. Geol. Surv. Pal. q ull. No. 2, p. 35, pl. iv, figs. 1а, 1b, le. vs “ Globosa” is preoccupied by J. Sowerby in Dixon's Geol. of Sussez, a p. 170, t. 3, fig. 20, 1850, so, unfortunately, this well-known name must go. utton gives as the localities of his species “ Hicks Bay; Kokohu; Wairoa, Nelson; Kanieri; Motunau (L); Broken River (U); Callighan's Creek ; Kawau; Oamaru." Unfortunately, the lectotype fixed by Suter finding out what variations existed in that locality. Nor are there an in the Geological Survey collection or at the Dominion Museum. T Harris (1897, р. 343) mentions “as immense double-valved — - dn | of Cucullaea ponderosa, and which is here classed as G. robusta E (see below). ; (b.) Kokohu (= Kakahu) : Suter separated these shells as G. subglobosa. (c.) Wairoa, Nelson: Of a arge number of specimens in the Geological Survey collection, all belong to G. cordata. Perhaps Hutton s mistook a large specimen of this for his G. globosa. (d.) Motunau (L): The exact locality is uncertain, but the few poor specimens in the Motunau collections (locs. 218 and 219) are here referred to G. manaiaensis. (e) Broken River (U) affords good specimens, which are, however, 10ге o ype. ' (7) Callighan's (= Callaghan's) Creek: The common shell of this locality belongs to the Avinea group, and is here called G. callaghant. lateral and regularly-rounded shape in youth, and the absence of : an anal sinus, it is considered to belong to a different species. Marwick.—Genus Glycymeris in Tertiary of New Zealand. 69 (g.) Kawau: No specimens very near the type were seen. (^.) Oamaru: The many fossiliferous localities in this district and the various horizons represented give Hutton's use of'the name a very wide meaning. Тһе Target Gully “ shell-bed " was unknown to him, and, as he used “ Awamoa " as a separate locality, it is ame t White Rock River, Pareora, and these, principally, were used in this paper for comparative purposes (see Plate 7, fig. 2). Localities :— ' Kanieri. (Lectotype.) 165—White Rock River, Pareora. (Also a flat varlety in Otago Museum collection.) 458—Lower Gorge, Pareora River. , 231 —" Upper part of Mount. Brown limestone, Trelissick." 151a— Pareora beds, Thomas and Porter Rivers Opihi River, South Canterbury (north bank, two miles west of Pleasant Point) (Marwick). Grey Marls, Mead Gorge, 25 ft. below conglomerate (Thomson). Tutamore Ridge, Poverty Bay district (Ongley and Macpherson). Shingly Creek, Lake Heron (Canterbury Museum collection: two specimens, one with a high, sharp beak). Records to be eliminated from N.Z. Geol. Surv. Pal. Bull. No. 8 : Page 23. Onairo = G. manaiaensis. Page 45. Motunau beds, Weka Pass = G. manaiaensis. Page 48. Trelissick Basin, loc. 239 — G. trelissickensis. Page 49. Trelissick Basin, loc. 449 = G. trelissickensis. Glycymeris subglobosa Suter. (Plate 3, fig. 3; Plate 4, fig. 3.) 1917. Glycymeris subglobosa Suter, N.Z. Geol. Surv. Pal. Bull. No. 5, р. 66, pl. vii, fig. 8. 164— Kakahu. (Holotype.) (Also in Dr. Marshall's collection.) 176—Black Point. (Poor specimens.) 70 Transactions. Although this shell has been recorded from many horizons—as high, indeed, as Wanganuian—these determinations must be considered extremely doubtful. No specimens examined from other than the two localities given above can be placed in this species. Glycymeris robusta n. sp. (Plate 3, fig. 5; Plate 4, fig. 5.) Shell very large, heavy, much inflated, subquadrate; beaks very prominent; anterior dorsal margin long, curved, descending gradually ; anterior end bluntly angled above; posterior dorsal margin shorter, more rapidly descending ; posterior margin with a flattened curve; basal margin meeting the posterior in a blunt angle, but curving regularly to meet the anterior; anal depression moderate; scu pture consisting of about 43 ribs, broad on the anterior and middle part of the disc, but narrow on the posterior; interstices narrow, but widening slightly towards the margin; crenulations of the inner margin obsolete posteriorly; ligamental area long and fairly wide, with four well-spaced ligamental grooves; teeth long and strong, horizontal at the extremities of the hinge-line ; anterior muscular impression large, triangular; posterior smaller, subquadrate. Dimensions of holotype (right valve) : Height, 74 mm. ; length, 75 mm. ; thickness, 30 mm. TANK Uu TU SE UL Un Cb Ee AE ae oe pee Sa ENTE IUE Target Gully (Park, 1916). (Holotype, in collection of N.Z. Geo- logieal Survey.) Specimens collected also by Marshall, Benson, and Finlay. Survey locality collection from Awatere Valley, loc. 126, and was accompanied by a label of Suter’s, “ Cucullaea alta.” This ? 166—Lower Gorge, Pareora. (A poor specimen, flatter than usual; listed by Suter in Pal. Bull. No. 8, p. 57, as G. subglobosa.) 483—McKay’s “ Hutchinson's Quarry greensands," Wharekuri. (A fragment.) Remarks. The holotype was used by Suter as a paratype for his | G. subglobosa from Kakahu. The excellence of its preservation makes one — wonder why he did not make it the holotype of his species, instead of the — — : matrix-filled specimen that he used. Perhaps he doubted the exact specific identity of the Target Gully and the Kakahu shells. D Although a large shell, the holotype is not quite full-grown, and so does ; j | : | i | теп. E - Point Hill, Glenavy. (Otago University collection.) id | ' not present all the characteristics of the old individuals, which are as much as 108mm. in height. These are thicker and heavier, the shoulders are more rounded, while the area is broad and has encroached on the teeth, which are thick and irregular. The flattened posterior margin is extended ventrally, making the shell more inequilateral. This species is larger and more tumid than G. subglobosa ; the ribs, too, - robusta would be very like mature G. sub- globosa, but the old shells present quite a different appearance, having more rounded shoulders and an inequilateral outline. Manwick.—Genus Glycymeris in Tertiary of New Zealand. 71 Very young shells of, say, 20 mm. height are difficult to separate from the young of G. huttoni. The teeth of G. robusta, however, are slightly thinner and more horizontal, the hinge-line is narrower, and the anal sinus somewhat shallower. The full-grown shell is more inflated than G. huttoni, the hinge-line is longer, the anal sinus much weaker, and the teeth are longer and more nearly horizontal. The flattening of the posterior margin and its extension downwards givé the shell a suggestion of a shortened have a fine little pitfall for the palaeontologist. Fortunately, the missing shell has been found, so the error can be corrected. The specimen used by Suter (1914, p. 36) for his description of C. ponderosa (and now in the Dominion Museum) is a Glycymeris robusta. It measures 102 mm. high, 94 mm. long, and 80 mm. thick (both valves) The measurements and locality given by Suter are taken from Hutton's description, and it^ will be seen that, while the height of both is 102mm., the length of the Cucullaea is 109 mm., which can hardly be said to “ answer very well" to that of the 94 mm. length of the Glycymeris. The locality of the shell is Glycymeris cordata (Hutton). (Plate 2, figs. 1, 6.) 1873. Pectunculus (?) cordatus Hutton, Cat. Tert. Moll., p. 28. 1886. Pectunculus cordatus Hector, Outline of N.Z. Geology, p. 51, fig. 6. Shell comparatively small, heavy, much inflated, roundly trigonal ; beaks very broad and high; anterior end broadly curved, sloping steeply from the umbo; posterior end attenuated below; anal depression mode- rate; sculpture about 35 obscure ribs with linear interstices ; ligamental L the mouth of the Wairoa Gorge. his species is easily identified by its somewhat small size, and the very large, broad beak. Records to be eliminated from N.Z. Geol. Surv. Pal. Bull. No. 8 -— Page 59. White Rock River, loc. 165 — G. globosa (worn). Page 69. Left bank, Waitaki River = G. waitakiensis n. sp. None of the other specimens recorded by Suter could be found, so that no example of G. cordata was seen from other than the type-locality. Glycymeris hurupiensis n. sp. (Plate 2, figs. 4, 5.) Shell large, heavy, inflated, subquadrate when young but becoming su e 1 1 72 Transactions. convex ; anal depression moderate; sculpture about 30 broad, flat radials with linear interstices generally obscured towards the edge of the adult by strong, waved growth-lines; inner margin coarsely crenate; ligamental area long and wide, with about 6 lightly-incised ligamental lines; teeth of variable strength, 10-12 on each side. Height of holotype (right valve), 58mm.; length, 63 mm. ; thickness, 5 mm Localities .— 1037—Sandstone, Hurupi Creek, Palliser Bay. 1039— Basal grits, Whakapirihika, east shore, Palliser Bay. Holotype in collection of N.Z. Geological Survey. This species may be distinguished from G. huttoni by its fewer and broader ribs, by its less-pronounced anal depression, and the ovate shape of the adult shell. Glycymeris kaawaensis n. sp. (Plate 2, figs. 2, 3.) Shell large, heavy, inflated, rounded, trigonal almost equilateral ; beaks very prominent, anterior dorsal margin sloping fairly steeply to the convex anterior end ; posterior dorsal margin short, posterior end broadly convex ; anal depression very weak; sculpture 30-35 broad, flat ribs with linear interstices, crossed by strong waved growth-lines towards the margin ; liga- mental area moderately long and very wide, with 6 somewhat shallow ligamental grooves; teeth short and stout, posterior ones curved; the olotype has 17 in front and 13 behind, 5 at each end free of the area (this, however, seems an exceptionally large number, as paratypes have as few as 3 whole teeth at each end and 2 or 3 rudimentary ones truncated by the area). Height of holotype (right valve), 61 mm. ; length, 65mm. ; thickness, mm. Locality.—996— Kaawa Creek. Holotype in collection of N.Z. Geological Survey. Remarks.—This species can be distinguished from G. huttoni and G. hurupiensis by its much more sloping shoulders, and the short, curved posterior teeth ; from the former also by its anal depression being prac- tically absent, and from the latter by its slightly narrower ribs. his is the shell identified by Suter as G. globosa (Hutton): J. A. Bar- trum (1919, p. 104). Although most of the large shells are thick and heavy, giving a strong resemblance to G. љи отт, this does not show the true nature of the species, which is much closer to G. manaiaensis. This is shown not only by the shape of the growth-lines of youthful stages, but also by some large indi- vi Axes iod AU rl ee is ee eS duals which have not become thickened. One specimen, collected by | E Mr. Bartrum, has a low beak and is very like a large G. manaiaensis. The area, however, is short and broad, as in other Kaawa shells. Viewed externally, the beak is seen to be somewhat narrower, the shoulders are more sloping, and the ribs fewer in number. Glycymeris manaiaensis n. sp. (Plate 3, fig. 4; Plate 4, fig. 4.) Shell large, of moderate weight, obliquely ovate, inequilateral, moderately inflated ; beaks small, not projecting much above the dorsal margin, anterior end practically a semicircle, posterior end somewhat attenuated ventrally ; anal depression absent; sculpture 30-35 flat radials with linear Marwick.—-Genus Glycymeris in Tertiary of New Zealand. 73 interstices, becoming obsolete towards the margin, where there are numerous waved growth-lines; ligamental area short and narrow, almost smooth, with three scarcely discernible ligamental grooves; teeth about 10 on each side, fairly short and stout, bent in the middle, where there is on each side a short striated facet with raised edges. Height of holotype (complete individual) 19 mm.; length, 53 mm.; thickness of one valve, 16 mm. Holotype in collection of N.Z. Geological Survey. Remarks.—This species may be distinguished from the three preceding ones by its ovate shape, very much lower beaks, moderate inflation, and small, almost smooth, area. Localities :— > 875—Manaia beach. (Holotype.) Whakino, Hawera (Marshall and Murdoch). 1018—Cliff half a mile north-west of mouth of Patea River. ? 190— Upper band of Petane limestone." (Fragmentary speci- men. ? 736—“ Petane and Scinde Island." (Fragmentary specimen.) Lower end of Starborough Creek, Awatere Valley (Thomson). 218—Motunau. (Poor specimen.) 219—Motunau. (Poor specimen.) 126—A watere Valley. Motunau beds, Middle Waipara (Thomson). Motunau beds, Lower Waipara (Thomson). Motunau beds, Weka Pass (Thomson). (Fragme equilateral shell with flat ribs and wide shoulders. It is neither (7. lati- costata nor manaiaensis, but apparently belongs to Glycymeris sp. [see below, p. 74 (d)]. Glycymeris rapanuiensis n. sp. (Plate 3, fig. 1; Plate 4, fig. 1.) ligamental grooves; teeth short, curved, with short striated facets at the angle. Height of holotype (right valve), 45 mm. ; length, 52-5 mm. ; thickness, 16 mm. Holotype in collection of N.Z. Geological Survey. Localit і y-—895—Mouth of Rapanui River. (Collected also by Mr. L. Grange.) 74 Transactions. Species not good enough for Description. here are several almost equilateral forms belonging to the huttoni group, but to none of the named species. The specimens are poorly preserv and few in number, so their separation and description have not been attempted. Three species, or subspecies, appear to be represented :— (1.) A shell of moderate size and considerable inflation, with low beaks and about 30 ribs (see Plate 7, fig. 3) :— (а.) Loc. 70—Akuaku, Poverty Bay district (figured). (b. Between Blairich and Black Birch Creek, Awatere Valley omson). (с.) Loc. 154 (?)—Callaghan’s Creek, Goldsborough. (d.) The shell figured by Zittel as P. laticostatas (1864, pl. xv, fig. 13a, 135) from Awatere Valley. (е.) Loc. 862— Near head of Waimata River, N.Z. Geo. Surv. Pal. Bull. No. 8, p. 10, listed as G. subglobosa. There is only a fragment of the beak and hinge, but it is not . lobosa subg : (2.) A very large shell with wide flat shoulders and narrow beaks :— а.) Loc. 649— Paparoa Rapids (also Marshall). Loc. 246— Cape Rodney, Auckland. | (b.) (3.) A large inflated shell with low rounded beaks and an almost smooth surface :— Loc. 866— Maungatokerau, Uawa, Gisborne District. The hinge-line is not clearly shown, so the shell may not belong to this group. It is listed as G. subglobosa in N.Z. Geol. Surv. Pal. Bull. No. 8, p. 7. | ПІ. The Ахїлєа Group. Glycymeris trelissickensis n. Sp. (Plate 5, fig. 4; Plate 6, fig. 4.) Shell of moderate size, very inflated, almost globular; beaks low, with a very wide angle; outline у tudinally oval in the adult; anal depression obsolete; sculpture, surface appearing almost smooth, but there are fine close radial riblets over the crenate, ligamental area small, closely striated by 4 or 5 grooves (a paratype of advanced age shows a wide area with 12 grooves) ; teeth small, numerous, about 6 on each side free of the area ; muscular impressions subequal. Height of holotype (right valve), 42 mm. ; length, 45-5 mm. ; thickness, 6 mm mm. Holotype in collection of N.Z. Geological Survey. ACID SE NES, у А С any Se oP Asie CaS кы | 252 ta Мы! Жыз ЕК ee Ae Bess icra ONE eet ce о MES 4 Cre RO S чє aoa o Marwick.—Genus Glycymeris in Tertiary of New Zealand. 75 Localities :— 239—'* Fan coral bed, Porter and Thomas Rivers, Trelissick Basin ” (MeKay, 1879). (Holotype.) 231— я ‘ Upper part Mount Brown limestone," Trelissick. ount Brown limestone, Coleridge Creek," Trelissick. 449—'' Lower beds, Trelissick Basin " ' (Enys 1 88 The matrix and preservation of this shell are ‘similar to that of the holotype, so it is probably eh Me same һогі?оп, and not from lower beds as stated in McKay’s manuscript. The species is distinguishable from nae other of the group by its wider beaks and greater inflation towards the ma т Glycymeris waipipiensis п. sp. (Plate 5, fig. 5; Plate 6, fig. 5.) Shell very large, regularly inflated, beaks wide and prominent, outline almost circular, anterior regularly rounded, posterior slightly straightened above; sculpture consisting of very fine radial riblets upon a system of obaölete narrow ribs, about 60 in number; waved growth-lines are pro- minent towards the margin ; inner margin very finely crenate ; ligamental area moderate, closely grooved ; teeth small, 7 on each side free of the area ; anterior muscular impression only slightly larger than the posterior. Height of поа к individual), 77 mm.; length, 79 mm. ; thickness of one valve Holotype i in the а Daal Dr. Marshall. Localities :— Waipipi (Marshall). (Also collected by Murdoch.) Kaawa Creek (small specimens). (Also collected by Bartrum.) This species is much larger than any of the others in the Agxinea group, described in this paper. It is intermediate in character between (7. tre- lissickensis and G. созса apt Small specimens would be distinguishable from the former by their more prominent and narrower beaks, and from the latter by their slightly stronger beaks and higher shoulders. Glycymeris shrimptoni n. sp. (Plate 5, fig. 3; Plate 6, fig. 3.) Shell of moderate size, н, beaks low; outline almost circular ; anal depression obsolete ; sculpture—the whole dise is covered with fine closely-placed radial riblets, ge 6 per millimetre, superimposed upon narrow obsolete ribs each bearing about 10 of the lines at the margin, near which especially there are concentric growth-lines ; inner margin finely crenate; ligamental area moderate, closely striate by 8 grooves; teetn small, 7 on each side free of the area ; muscular i impressions sube ual. Height of holotype (left valve), 44 mm. ; length, 43 mm. ; thickness, 5 mm Holotype i in collection of N.Z. Geological Survey. Localities 191 Shrimpton" s, Ngaruroro River, Hawke's Bay. (Holotype.) ? 231—McLean’s, Ngaruroro River. (Very much worn.) This species is closely related to G. trelissickensis, but the beak is a shade higher and has a narrower angle; there is also less inflation towards the mar, ortis specimens develop a certain amount of obliquity, but they can always be separated from such species as G. callaghani and С. waitakiensis by their wider shoulders. 76 Transactions. In N.Z. Geol. Surv. Pal. Bull. No. 8, p. 19, this species is listed as G. striatularis (see below, p. 77). Glycymeris waitakiensis n. sp. (Plate 5, fig. 2; Plate 6, fig. 2.) Shell of moderate size, fairly solid, roundly trigonal almost equilateral, inflated ; beaks broad, prominent, but only moderately projecting above the hinge-margif; anterior end steeply sloping above, broadly rounded below ; posterior end similar, slightly attenuated ventrally ; sculpture— the surface is almost smooth but weathering shows very narrow radials corresponding to the fine crenulations of the inner margin; ligamental area short and broad, closely striated by 7-8 grooves; teeth small and fine, about 12 on each side, 6 of which are free of the area. ; Height of holotype (left valve), 39 mm. ; length, 40-5 mm. ; thickness, 15 mm. - Holotype in collection of N.Z. Geological Survey. Locality —483—Hutchinson’s Quarry greensand, Wharekuri (McKay). Material, one specimen, in very good preservation. : rks.— This shell may be distinguished from G. trelissickensis by its trigonal shape, and from G. callaghani by its approach to an equilateral disposition. Listed by Suter іп N.Z. Geol. Surv. Pal. Bull. No. 8, p. 69, as G. cordata (1), in Mr. Uttley's collection. : Glycymeris callaghani n. sp. (Plate 5, fig. 1; Plate 6, fig. 1.) Shell large, solid, inequilateral, obliquely ovate, inflated ; beaks moderate, narrow ; anterior semicircular ; posterior end attenuated ventrally : sculpture—surface covered with very fine radial riblets, underlain by obsolete primary ribbing, showing plainly on weathering, these ribs are about 50 in number: inner margin with crenulations of moderate size; ligamental area short but wide, closely striated by 8-10 well-incised grooves; teeth fairly strong ; muscular impressions subequal, the posterior with à — very strong ridge in front of it. Holotype in collection of N.Z, Geological Survey. : Height of holotype (right valve), 50 mm. ; length, 51 mm. ; thickness, 18 mm. Localities :— 154 (in part)—Greensand, Callaghan's Creek, Kanieri district (N.Z. Geol. Surv. Rep. No. 9 by Mr. Bartrum.) ; 649—Paparoa Rapids, Wanganui River, (The beaks of these speci- mens are broader than those of the type.) ? 899—Taumatamaire, Awakino. " matrix. в species may be distinguished obliquity. The outline is like that of G. ma but the fine o:namentation and cl | i impression j r in any other ~ Species of the genus, pression is stronger than in any | » 1877, p. 84). (Holotype.) (Collected also | . (А small specimen filled with — ioe Marwick.—Genus Glycymeris in Tertiary of New Zealand. 77 Glycymeris modesta (Angas). (Plate 5, fig. 6; Plate 6, fig. 6.) 1879. Axinea modesta Angas, Proc. Zool. Soc., p. 418, pl. 35, fig. 4. 1873. Pectunculus striatularis Lam.: Hutton, Cat. Ter. Moll., p. 28 (not of Lamarck). 1908. Glycymeris velutina Suter, Trans. N.Z. Inst., vol. 40, p. 354, pl. 30, figs. 1, 2. 1913. Glycymeris modesta (Angas): Suter, Man. N.Z. Moll., p. 852. For further synonymy and description see Suter’s Manual. It must be remembered that Suter mistook the anterior for the posterior of the shell, so his description of the beaks should read “ slightly curved backwards," on 191—Shrimpton’s, Ngaruroro River, Hawke’s Bay. 996—Kaawa Creek, Auckland. (Small specimens.) (Also collected by Bartrum. The lowest horizon in the Wanganui district recorded for this shell by Marshall and Murdoch is Nukumaru. Beyond the characters of the “ group,” this shell shows no close affinities with any other New Zealand shell, and, as the original stock by Oliver (1915, p. 567) in his list of mollusca from that locality. Species to be eliminated from New Zealand Lists. Glycymeris convexa (Tate). 1885. Pectunculus convesus Tate, Trans. Roy. Soc. S. Aust., vol. 8, p. 138, pl. xi, fig. 7 a, b. 1921. Glycymeris convexa (Tate): Suter, N.Z. Geol. Surv. Pal. Bill. No. 8, p. 49. The occurrence of this species in New Zealand strata is based on a single record (Suter, 1921, p. 49) from locality 449, Trelissick Basin. Strange to say, of the three shells in this collection, this particular speci- men is missing, so that no definite statement can now made as to its identity, and until this specimen is found, or further material collected, the Australian species cannot safely be said to occur in New Zealand. Glycymeris striatularis (Lamarck). 1835. Pectunculus striatularis Lamk., An. s. Vert., vol. 6, p. 493. This is a Recent shell from King George Sound, Western Australia. It has been recorded doubtfully by E. A. Smith (1885, p. 252) from Port Jackson, but Hedley (1918) says the identification is erroneous. Hutton (1873, p. 28) and others used the name for the Wanganui and Recent shells now classed as G. modesta. Suter, while recognizing for these shells, has used striatularis in three other cases: (a) For speci- mens from Kaawa Creek (Bartrum, 1919, p. 104) belonging to the Axinea group, and very likely a young G. waipipiensis; (b) for small specimens 78 Transactions. of G. modesta from Kaawa Creek ; (c) for specimens from 191—Shrimpton’s (Suter, 1921, p. 19). is shell is also an Azinea, and is here classed as a new species, G. shrimptoni. Note on Glycymeris concava Marshall var. (Plate 7, figs. 1, 4.) Glycymeris concava Marshall, Trans. N.Z. Inst., vol. 49, p. 459, pl. 36, fi 1917.) As the Wangaloa beds from which this shell comes are probably Upper Cretaceous, this species has not been included with the Tertiary ones described above. Dr. Marshall kindly sent some of the type-material of the species, including the holotype. The paratype, 65 mm. high, 63 mm. long, here figured, is worthy of notice on account of its very strong beaks. It seems to be entitled to at l ast subspecific rank, a matter which сап be cleared up when the Wangaloan fauna is being revised, SUMMARY or SPECIFIC CHARACTERS. (These must be considered as only approximate.) I. Laticostata group: Equilateral; circular or dorso-ventrally oval; low beaks; area steep, closely grooved. (a.) lornensis : Small, subtriangular, ribs broad, beaks moderate. (b.) traversi : Ribs and interstices of equal width all over the dise. (с.) laticostata : Interstices narrower and ribs broader on anterior half. (d.) chambersi : Ligamental area very densely striated, ribbing fairly regular. П. Huttoni group: Flat obsolete ribs, linear interstices, beaks generally strong, ligamental grooves widelv spaced. (a.) subglobosa : Equilateral, 55 ribs, beaks wide, shoulders high. (b.) huttoni : Subquadrate, strong anal depression, 45 ribs, beaks high. (c.) robusta : Subquadrate, shoulders rounded, 43 ribs, interstices widening towards the margin Ф 22 slop (9.) rapanuiensis : Longitudinally oval, ligamental area small and , 30 ribs nely crenate, ligamental area steep, very closely grooved. : t very wide. agha eaks narrow and prominent. (d.) iwavpipiensis : Very large, circular, beaks prominent. (e.) shrimptoni : Moderate size, circular to slightly oblique, beaks narrow and fairly prominent, (f.) modesta : Very small, trigonal, beaks noticeably curved backwards. ү X 79 Marwick.—Genus Glycymeris in Tertiary of New Zealand. ши боа 1 w% тирүбю]үюә | (4) sisuaryoponm == поб еш | пенш 55 ‘ "seuadadavan | (4) веиәуотеғаәл (1) sisuayoiss iyo. | | | n | | | | | sisuaDIDUDUL | | | | | "sigua munda (5) mopoa | | к, | | `#}#иәрїим | sısuardnany | | к dno45 0900010) | et | | | | q \ шорт (2) ruonny | | ne0qojóqne - | | | | | reteuoufiaos wp ^ колу. | (4) npsysoougny | eyeuauso | | | dnoa3 pjvjsootgnT | "1ләдшлууә | | | | | | “saan | | | | | | | | | | *juaooq | "uemuvsuv A | "uvoura y "uveriosurgojn H "mavjojo | Ens | ipip rds oy | "wopesum A | TEMA | = | ж | | Cad 80 Transactions. ACKNOWLEDGEMENTS. I am greatly indebted to the following gentlemen, who so kindly sent, or made available, material for examination: Drs. Benham, Benson, Cotton, Henderson, Marshall, and Messrs. Bartrum, Morgan, Murdoch, Speight, and Finlay; also to Messrs..G. №. Sturtevant and J. McDonald for valuable advice in the preparation of the figures. List oF PAPERS REFERRED TO. | BanrRUM, J. A., 1919. А Fossilferous Bed at Kawa Creek, Trans. N.Z. Inst., vol. 51. 5 рр. 101-6. Fiscuer, P., 1887. Manuel de Conchyliologie. HEDLEY, C, 1916. Prelim. Index Moll. W. Aust. a —— 1918. Check-list Marine Fauna N.S. Wales, Jour. Roy. Soc. N.S.W., vol. 51, : p. M6 (Appendix). Hutton, Е. W., 1873. Cat. Tert. Moll. N.Z. MARSHALL, P., 1917. The Wangaloa Beds, Trans. N.Z. Inst., vol. 49, pp. 450-60. McCoy, F., 1875. Prodromus of Pal. Vict., dec. 2. Er OLIVER, W. В. B., 1915. The Mollusca of the Kermadec Islands, Trans. N.Z. Inst., r , vol. 47, pp. 509-68. x Smita, E. A., 1885. “Challenger” Report, Lamellib., vol. 13. E ollusca. : * .N o. 8. ТАТЕ, R., 1885. Trans. Roy. Soc. S. Aust., vol. 8, p. 138. = Woops, H., 1917. N.Z. Geol. Surv. Pal. Bull. No. 7. * ZITTEL, K., 1864. Reise der ** Novara," Geol. Theil I, 2. E Art. 3.—On the Discovery of the Liothyrella boehmi Greensand Band at Flume Creek, Waitaki Valley. By Professor James Park, F.G.S., F.N.Z.Inst., Dean of the Faculty of Mining at Otago University. = . [Read before the Otago Institute, 8th November, 1921 ; received by Editor, 12th November, 1921; issued separately, Ist February, 1923.) T AT the lower end of Flume Gully, about a mile from Papakaio, the yellow- and-black speckled mineral tuffs which occupy the floor and lower sides of the valley are overlain conformably by a bed of compact yellowish- ^ brown caleareous sandstone about 40 ft. thick. The lower part of this | sandstone is highly glauconitic, and the upper part is intercalated with — nds and lenses of hard impure limestone _ At the junction of the tuffs and overlying glauconitic layer there is an irregular streak of gritty, pebbly conglomerate, ranging from almost nothing to about 2in. thick. The material in this grit-band is mainly flinty quartz and black minerals. In size it ranges from sand-grains to well | rounded pebbles 13 in. in diameter. E. The dip of the tuffs and associated calcareous sandstone is towards the — | north at a low angle. The course of Flume Gully is almost at right angles to the strike, which coincides approximately with the trend of the Waitaki Valley. On the west side of the gully, at a point about 100 yards above the big flume and 55 ft. above the floor of the valley, I discovered in the soft glauconitic band overlying the tuffs and in the pebbly band a rich marine _fauna, containing prominently, among many other shells, a profusion of well- preserved examples of the large and beautiful Liothyrella boehmi (Thomson). Md уз АЕ ОА gx ho CE get ЫЛЫА a E iE ЕТАН Pank.—Liothyrella boehmi Greensand Band at Flume Creek. 81 The molluses collected here included— Epitonium lyratum (Zitt.) | Pecten hochstetteri Zitt. Siphonalia conoidea (Zitt.) | Pecten delicatulus Hutt. Turbo marshalli Thomson Pecten huttoni (Park) Crepidula costata (Sow.) | Ostrea wuellerstorfi Zitt. From the same bed I collected the brachiopods— Liothyrella boehmi (Thomson) | Pachymagas ellipticus Thomson Liothyrella oamarutica Boehm Neothyris tapirina (Hutt.) Terebratulina suessi Hutt. Rhizothyris rhizoida (Hutt.) Aetheia gualteri (Morris) - Hemithyris sp. cf. squamosa (Hutt.) Of these, Liothyrella boehmi, Aetheia gualteri, and the species of Hemi- the flume, in the uppermost layer of the tuffs, I found a good example of - Liothyrella boehmi and one example of Aetheia gualteri. My success at Flume Gully led me to an examination of the lower glauconitie horizon further afield. I discovered almost the same assemblage of brachiopods in the glauconitic band underlying the Maruwhenua lime- stone at the old gold-workings; also in the same band below the Ngapara stone at Weka Creek, Ngapara, at Pukekarara Creek, a mile and a half achiopods. The assemblage of brachiopods found at Flume Gully is practically the same as that occurring in bed c, fig. 25, overlying the Oamaru stone stone near Sebastopol;f in the calcareous glauconitic tufis overlying the Kakanui and neighbourhood.§ . But this brachiopod assemblage also occurs in the glauconitic sand- stone band underlying, or forming, the lowermost part of the Waitaki stone near Duntroon,|| Maruwhenua, and Ngapara. And from these facts I conclude (a) that the Waitaki stone overlies the Oamaru stone: (b) that the Kakanui, Flat Top Hill, and Deborah limestones, as well as the upper bands of limestone or calcareous glauconitic sandstone at Sebastopol, Landon Creek, and Flume Gully, are the equivalent of the Waitaki stone; and (с) that the ‘Liothyrella boehmi brachiopod horizon below the Kakanui limestone is the equivalent of the glauconitic sandstone band immediately below the Waitaki stone. The new evidence strengthens my contention (a) that in the Oamaru area there are two limestone horizons—viz., the Oamaru limestone and * J. Park, The Geology of the Oamaru District, N.Z. Geol. Surv. Bull. No. 20 (n.s.), p. 63, 1918. tJ. Park, Le., р. 74. 82 Transactions. the Kakanui limestone (or Waitaki stone) ; and (b) that in the Maruwhenua- Ngapara area the Oamaru limestone is represented by clayey and sandy beds Aon the Liothyrella boehmi zone akanui the Kakanui limestone is separated from the gee stone by a cor thickness of mineral tuffs, and the outcrops of the t ime- stones lie far apart. To the west the tuffs diminish rapidly in КЖ ө. and eventually disappear near Weston and Totara. As a consequence of this the limestone outcrops converge to the westward, and at Sebastopol and in the area lying to the west of that hill the two rocks rest on one another, forming one escarpment; but the glauconitic band is always present between them, though not everywhere fossiliferous. Towards the Waitaki area the Oamaru stone thins out and then dis- appears, but the glauconitic Liothyrella boehmi band and the overlying Waitaki stone are still present. It is noteworthy that the discovery of this useful reference-horizon was due to the assiduous and careful collecting of Mr. abai supplemented by the pen a e identification of species by Dr. Thom The у modification introduced into my Semis (1918) of the байкаш by the discovery of the Liothyrella boehmi zone, omitting the conglomerate band, which is often absent, is the correlating of the Kakanui limestone with the Waitaki stone. Thus we ge Awamoan .. = and shelly sands. (a) U ео (Waitaki, Kakanui) (Pachymagas parki horizon). (b) тека бышы sandstone band (Liothyrella boehmi horizon). Ototaran— a Mineral tuffs | (b) .. Oamaru stone ) Waiarekan.. Volcanic tufis. To west and north, clayey and sandy beds. Ngaparan .. Quartz sands, grits, and conglomerates, with lignite. To west and north, clayey and sandy beds. Art. 4.—On the Relation of the Oamaru Limestone and Waitaki Stone By Professor James Park, F.G.S., F.N.Z.Inst., Dean of the Faculty of Mining at Otago University. | Read before the Otago Institute, 8th November, 1921 ; received pe Editor, 12th November, 1921; issued separately, Ist February, 1923.) Tae principal theme of a paper by Mr. G. Н. Uttley, M.A., M.Sc., F.GS., published in the Transactions of the New Zealand Institute* i is what he calls the ** two-limestone theory of Professor Park." Mr. Uttley's contention is that the Waitaki stone is the horizontal equivalent of the Oamaru lime- stone. In the beginning I may say that I am tempted to deny the gentle charge that the invention of what he calls the “ two-limestone theory " is mine. Perhaps my disclaimer is unnecessary, since Mr. UttleyT himself supplies the correction when he tells us * that McKay's ‘ two-limestone theory’ [1877 and 1882] is radically different from Park’s ‘ two-limestone theory *” [1905 and 1918]. Mr. Uttley rightly quotes me as having written,t in 1887, "Standing on the high hills surrounding Ngapara, it is quite obvious that the Ototara * Trans. N.Z. a bes 52, 169-82, 1 G. Н. UrrLE i 139 ace tJ. PARK. Eep. "Geol. gm during 1886-87, p. 140, 1887. Panx.— Relation of Oamaru Limestone and Waitaki Stone. 83 stone at one time formed a continuous bed.” 1 now know how fallacious an observation made from a distant hilltop may be. Clearly, the obvious, as cogently argued by Carlyle, may easily conceal the truth. e summer of 1916-17 the mapping of the area lying to the west of the railway-line for the first time disclosed the error I had fallen into in 1886 in concluding from a bird's-eye view of the country that the Oamaru and Ngapara limestones were part and parcel of the same sheet. In 1920 I spent two weeks, and in the present year four weeks, in the coastal dnd western parts of the Oamaru and South Canterbury districts, concerning myself mainly with the position of the Liothyrella boehmi horizon and the relationship of the Oamaru and Waitaki stones. again traced the Waitaki stone to Ngapara and Tokarahi, and examined the country between Enfield, Windsor, Big Hill, and Маарага. 1 satisfied myself that I was right (1904, 1910, and 1918) in regarding the Waitaki, Maruwhenua, Ngapara, and Tokarahi stones as part and parcel of the same sheet; and, of no less importance, confirmed my survey of 1918, which showed that the Oamaru stone does not connect with, or come within many miles of, the Ngapara limestone. Р Among other places I revisited this year was the high ground overlooking Windsor Junction. From this elevation the Oamaru-stone escarpment this to Table-top Hill. The escarpment now trends north-west in the direction of Big Hill, giving the impression as viewed in perspective that the Oamaru stone forms the cap of Big Hill itself and of the scarp-bounded Along the eastern or coastal fringe of the anticline the strata are bent into minor synclinal and anticlinal folds. The best developed of these is the Awamoan syncline, a N.W.-8.E. fold which closes to the north-west, where it: gradually merges into the eastern limb of the major anticline. I have recently examined many of the fine natural sections in the Waihao Waihao stone is the horizontal equivalent of the Oamaru stone implies no evidence. Clearly, if the Mount Harris beds are Awamoan, the Waihao * J. Park, The Geology of the Oamaru District, N.Z. Geol. Surv. Buil. No. 20 (n.s.), p. 110, 1918. 84 Transactions. zon.” But each of them taken by itself is a series of fossiliferous beds of great thickness. How then, may I ask, can the two when combined form one horizon ? line of argument, we might as well deny the separation of the Ordovician and Silurian, Triassic and Jurassic, Miocene and Pliocene ; or deny the right of historians to divide historic time into iods. ing my survey of the Oamaru district in 1916-17 I discovered a hitherto-unknown fossiliferous horizon in the Upper Hutchinsonian at Target Gully, containing many casts of Pachymagas parki, and separated from the overlying Target Gully Awamoan shell-bed by about 20 ft. of soft glauconitic sandstone. From the friable glauconitic sandstone of this horizon (bed c, fig. 35, Geol. Surv. Bull. No. 20, p. 80) I collected seventy- two species of Mollusca. Mr. H. Suter, who made the identifications, on. t think Mr. Uttley's argument is sound ; and if we followed it to its logical conclusion we should get curious results. It is well known that station exercises a powerful influence on the distribution of molluscan life. Of the few molluses recorded from the Oamaru stone none are contain only 27 per cent. of living forms. The grouping and correlation of horizons based on small collections must always be regarded with suspicion. Frequently they give results that are altogether erroneous. . ln his latest paper Mr. Uttley|| seems to have modified or receded from his “ Hutchinsonian-Awamoan " hypothesis. He says: ‘‘(6.) The occur- rence of Awamoan fossils in the beds (Otiake beds) above the limestone of the Waitaki Valley, and the fact that the Awamoan and Hutchinsonian are ‘part and parcel of the same series; as Hutton, McKay, and Park have asserted, further strengthens the argument that this limestone [Otiake] is Ototaran." | ee h 26 Н. UrrLEY, (i) Tertiary Geology of the Area between Otiake River (Kurow District) and Duntron, North Otago; (2) ‘Tertiary Geology of the Area betten iake i Ae У 5 . , io i S iver, North Otago, Trans. N.Z. Inst, vol. 52, pp t Trans. N.Z. Inst., vol. 52, p. 174, 1920 t N.Z. Geol. Surv. Pal. Bull. No. 8, p. 54 8 Loc. cit., p. 58. жшше жа этге | Trans. Х.Ж. Inst., vol, 52, p. 182, 1920. ParK.—Relation of Oamaru Limestone and Waitaki Stone. 85 Perhaps I may say that the phrase “the same succession " would express my own and McKay’s meaning better than the words “the same series " quoted above. ; Mr. Uttley immediately continues: “ (7.) Nevertheless, the brachiopod fauna of the greensands in the Oamaru coastal district enables a clear line of demarcation to be drawn in that area between the Hutchinsonian and Awamoan." With this I am in complete agreement. But my bed c of fig. 35 at Target Gully, previously referred to, contains an abundance of brachiopods (see Geol. Surv. Bull. No. 20, p. 81), while the hard brown glauconitie sandstone stratum (bed d) which underlies the Awamoan and closes the Hutchinsonian contains casts of Pachymagas parki in great abundance. Therefore, according to Mr. Uttley's own view quoted above, bed c of fig. 35 cannot be regarded as Awamoan. I am of the opinion that if the new horizon (bed c) at Target Gully were opened up a rich harvest of molluses would be obtained. Ёхрегі- ence has shown that exhaustive collecting in the Caimozoic formations tends to decrease and not increase the proportion of living forms. Apart from further discoveries, the presence of so many brachiopods in beds c and d proves that Mr. Uttley has failed in his contention that * there would seem to be no justification for separating these beds from the Awamoan horizon." In 1918 I described a section a quarter of a mile east of Flume Creek* in which a yellowish-brown calcareous slightly glauconitic sandstone inter- calated with harder bands contains the coral Isis in abundance. This rock conformably overlies a greyish-white limestone that in its upper part is hard and semi-crystalline, and rests on voleanic tuffs and mineral breccias. These tufis were first described as occurring in this area by Mr. Uttley. An assemblage ot brachipods in which Liothyrella boehmi Thomson is prominent occurs at the base of the glauconitic sandstone and upper part of the mineral tuffs. If any reliance is to be placed on the zonal value of the brachiopod fauna it is evident that what I have classified as the upper band of Oamaru stonef must be grouped with the Deborah (or Kakanui) limestone lying above it. The importance of this section is second only to that at the mouth of Flume Creek. Мг. Uttley states that he “ was unable to find it." I have examined the section in question twice in the present year and found that the Isis band, as I stated in 1918, does underlie the brown glauconitic sandstone with the intercalated hard limestone layers. I now d that the coral I called Isis is the related Mopsea. — — E Mr. Uttley in discussing this section continues, “ Even if the glauconitic sandstone (bed g of fig. 28) does occur as shown in section above d. no evidence has been presented to show that it is the equivalent of the limestone of the Waitaki Valley near Duntroon." imself does not hesitate to correlate the so-called Otiake limestone with the Maruwhenua limestone, notwithstanding that the former occurs as an isolated down- faulted block lying between two ridges of Palaeozoic rock, one of which separates it from the Otekaike limestone, the nearest Cainozoic rock, which may or may not be the horizontal equivalent of all or a part of the Maruwhenua stone. Mr. Uttley maintains that the Waitaki stone near Duntroon is a lime- stone as pure in many parts as the typical Ototaran (Oamaru) limestone. * J. PARK, N.Z. Geol. Surv. Bull. No. 20 (n.s.), p. 65, 1918. T Loc. cit., p. 66. 86 Transactions. But in saying this he has fallen into an error. The Oamaru stone is essentially a polyzoan limestone of high but even grade, the calcium- carbonate content seldom falling below 90 per cent. except where mingled with voleanie ash. Its distribution shows that it is local, and that it accumulated as an off-shore reef or bank where no terrigenous matter was being deposited. On the other hand, the Waitaki stone is a low-grade arenaceous limestone of extremely variable composition. As a rule, the typical Oamaru building-stone is so soft that it can be cut with a saw as readily as a log of pinewood. I have examined 110 sections of Oamaru stone from Gay's Weston quarry, and forty-two from Totara, Teschemaker’s, and Deborah. The Polyzoa range from 28 to 94 per cent., the difference from 100 being made up for the most part by Foraminifera with some echinoderm plates and rarely shell-fragments. The average sample contains about 60 per cent. of Polyzoa and 30 per cent. of Foraminifera. Dr. P. Marshall* has described a sample of Oamaru stone as composed of Polyzoa, echinoderm plates, and Foraminifera in about equal propor- tions. I am satisfied that the sample examined by Dr. Marshall was not representative. The Waitaki stone, as typically developed near Duntroon, is an impure arenaceous limestone intercalated with thin layers of higher-grade lime- stone that weather out in the escarpment-faces as prominent bands. The analysis} quoted by me, and referred to by Mr. Uttley,f is that of a sample collected from several of the highly calcareous bands mentioned above. It may be said that these bands taken altogether comprise less than 20 per cent. of the Duntroon stone. Mr. Uttley§ also refers to the Bortonian stage, the existence of which Cainozoic type at Black Point, near Borton’s, in the Waitaki Valley. The first collection at this place was made by Mr. McKay|| in 1876, who reported, among other forms, the occurrence of Ancyloceras and Scaphites. No The fossils from near Windmill Creek and Papakaio were ardh referred by me to the Bortonian. The limitations mentioned by Mr. Uttley were clearly recognized by me, hence the separate lists of fossils I gave іп 1918.4 Till Mr. Uttley is able to furnish some new facts about the horizon of the fossils occurring near Windmill Creek and Papakaio we may, I think, let the provisional correlation stand. Dr. Thomson has said that masses. The fossils from the middle of the boulders are mostly testiferous and well preserved. In a note to my paper “ On the Age and Relations of the New Zealand Coalfields” I stated that I had obtained evidence in north Otago and south Canterbury confirming my view that the Pareora beds underlie the * Trans. N.Z. Inst., vol. 48, p. 92, 1916. T N.Z. Geol. Surv. Bull. No. 20 (n.s.), p. 115, 1918. 1 Trans. N.Z. Inst., vol. 52, p. 178, 1920. $ Loc. cit., pp. 178-79. || Rep. Geol. Explor. during 1876-7 7, p. 52, 1887. © N.Z. Geol. Surv. Bull. No. 20 (n.s.), pp. 34, 35, 1918. Pank.—Relation of Oamaru Limestone and Waitaki Stone. 87 Oamaru stone and therefore belong to the Oamaru series.* І need hardly say that the “ Pareora beds” I referred to belonged to the Pareora series of Hutton. It was to eliminate the confusion arising from the application the limestone that in 1905 I adopted the name “ Awamoa " in preference to * Pareora" when dealing with beds definitely known to overlie the Mount Brown (or Hutchinsonian) beds. My classificationt of 1905, with “ а. Waitaki stone " deleted, still repre- sents the stratigraphical succession of the Lower Cainozoic formations of New Zealand as we know them to-day. The inclusion of the Waitaki stone was an attempt to reconcile Captain Hutton's views with those of The Oamaruian succession in the Oamaru coastal area and in the Waitaki-Ngapara area is shown below :— Stage. Coastal Area. Waitaki-Ngapara Area. Awamoan .. Awamoa beds .. .. Awamoa beds. Hakk А (Deborah limestone .. Waitaki limestone. utchinsonian .. |Z boehmi band .. `` L. boehmi band. ( Mineral tuffs is w] G T beds. Ototaran ' (Oamaru stone... v 10) еи ums Waiarekan .. Waiareka tuffs .. E я гап .. Ngapara grits, sands, &с. .. Ngapara grits, sand, &c. Авт. 5.—-On the Character of the Contact between the Ngaparan Beds and the Underlying Bed-rock. By Professor James Park, F.G.S., F.N.Z.Inst., Dean of the Faculty of Mining at Otago University. Read be he Otago Institute, 8th November, 1921 ; received by Editor, 12th November, deg ^ 1921 ; issued separately, Ist February, 1923.) AN examination of the surface of the bed-rock on which the Ngaparan lignitic beds rest should afford much useful information as to the con- * Trans. N.Z. Inst., vol. 36, p. 418, 1904. + Trans. N.Z. Inst., vol. 37, p. 492, 1905. { J. Park, loc. cit., p. 492. 88 Transactions. At Cape Rodney, on the east coast of North Auckland, the fossiliferous breccias at the base of the Waitemata series of Oamaruian age rest on the uneven surface of a jagged ridge of Trio-Jurassic argillites and grey- wacke. Farther south, at the west end of Motutapu Island* in the Waite- mata Harbour, marine erosion has exposed a good section of the basement beds of the same Cainozoic formation abutting against and overlapping the Trio-Jurassic rocks which rise up somewhat abruptly above sea-level, forming a ridge that runs to the eastward. As the lowermost beds of . the younger series are not uncovered, it is impossible to say how far they overlap the uneven bed-rock оп: which they rest; but the character of the material tends to show that no great thickness of strata exists below the breccia exposed on the beach. At Puketawai, lying six miles east of Te Kuiti, a ridge of Middle Mesozoic rocks rises up through the Oamaruian coal-measures, thereby interrupting the continuity of the coal. Though the actual contact is mot seen, boreholes have shown that the sides of the ridge are steep. Other outcrops of the bed-rock occur to the north and west, a circumstance which seems to show that the coal-measures in this area were deposited on a terrain dissected in the early Cainozoic into hollows and ridges. The floor of the same coal-measures at the old Taupiri workings as exposed along the outcrop is not rugged but gently undulating. On the Mount Arthur tableland, Nelson, the Oamaruian formation is represented by a thin bed of gravelly conglomerate overlain directly by a horizontal sheet of hard limestone. ere the conglomerate rests on a fairly even peneplained surface of Palaeozoic rock. Near Stony Creek, in the Takaka Valley, the same Cainozoic limestone lies directly on a remarkably even platform of Ordovician crystalline lüimestone.f То the north of this, in the Aorere Valley, isolated blocks of the Oamaruian limestone are underlain by quartz sands which rest on a peneplained surface of Palaeozoic slaty argillite. In the upper part of Big Hill Creek, to the west of Big Hill, in the Awamoko Survey District, Oamaru, a sharp pinnacle of phyllite projects into the quartz sands of the Ngaparan lignitie series.t In the same area І recently discovered an isolated ridge of russet-brown semi:metamorphic Kakanuian schist projecting into the quartz sands of the lignitic series at a place a mile from Ngapara, close to the sand-pit facing the main road and railway to Oamaru. The outcrop begins at the south-east corner of Section 14a, and passes into Section 15a of Block VII for a distance of 50 yards or more. It rises into the sands to a height of 40 ft. It was noted that the strike of the Palaeozoic rock is N.W—S.E., and the dip, though this is somewhat obscure, to the south-east at high angles. The slope of the schist-ridge on the side presented towards Ngapara is steep. To the eastward the slope is gentle. The sands wrap around and ride over the ancient ridge, rising above it to a height of 180 ft. At Port Craig, south of Mussel Beach, on the south-west side of Waewae Bay, Southland, the breccias, conglomerates, and limestones at the base of the Oamaruian are seen resting on a deeply eroded and uneven floor of diorite.§ * J. PARK, Rep. Geol. Explor. — 1886-87, No. 18, 22 : à ; Vo. 18, p. 225, 1887. TJ. Park, Rep. Geol. Explor. during 1888-89, No. 20, p. 226, 1890. tJ. Ракк, N.Z. Geol. Surv. Bull. No. 20 (n.s.), р. 21, і $ J. Park, The Geo and Mineral ree : Ў ‚ logy Geol.. Surv. Bull. No. 23 (n.s.), p. 51, 1921. s of South-west Southland, N.Z. Park.—Contact between Ngaparan Beds and Underlying Bed-rock. 89 In 1906 Dr. J. M. Bell called certain uplands in Westland a “ fossil peneplain,?" and in 1916 Professor C. A. Cotton described the even, gentle slopes descending from the uplands to the west towards the middle Kakanui Valley, and forming a conspicuous land-feature from almost all by the ordinary processes of denudation as a "stripped peneplain." This, I think, is a misuse of a common English word in a way that probably conceals the real meaning of the users, and, moreover, seems to convey the subtle and erroneous inference that the surface of the peneplain as it now exists is the same surface as that on which the covering sediments were a rate as to expose the orginal surface of the peneplain everywhere at approximately the same date, and if, after this event had come about, denudation were held in abeyance, then we should behold what was in deed and in fact a true “ fossil peneplain.” The first condition is not impossible. If the covering beds consisted of weak unconsolidated sediments of fairly uniform character the rate of protecting covering of ice. Such an ice-sheet. may have existed on the uplands during the Pleistocene, but clearly on the disappearance of the ice denudation would once more begin its activities. The frequent tors of rock on the Barewood peneplain and high stacks on the table-topped summit of the Rock and Pillar and Old Man ranges are an evidence of the progress of denudation since the Otago peneplain was uncovered. Moreover, they prove that the present surface of the relies of the ancient peneplain in Central Otago is not the original pene- plained surface. For that reason I think that the term “ fossil peneplain ” or “ fossil plain," though perhaps not so inaccurate as the term “ strippe peneplain," nevertheless connotes a condition that from the nature of things must be almost impossible of attainment. The character of the rock-floor on which the Oamaruian rests possesses a far-reaching significance. When many observations are placed on record as to the contour of the floor on which the basement beds of the Oamaruian rest we shall be able to speculate on the configuration of the maritime lands of older Cainozoic times with a confidence we do not now possess. 90 Transactions. Авт. 6.—Note on the Hanging Valleys of the Upper Rangitata Valley. Ву В. Spxicut, M.Sc., F.G.S., F.N.Z.Inst., Curator of the Canterbury Museum. [Read before the Philosophical Institute of Canterbury, 7th September, 1921; received by Edi t ditor, 31st December, 1921 ; issued separately, 1st February, 1923.] Plates 8, 9. of ice as an erosive agent, a question concerning which there are varie opinions. Authorities like Davis (1909), Gilbert (1904), and Penck credit running water; and these opinions are supported in America by Fairchild (1905), Russell (1905), and others. According to the first group of authorities, hanging valleys are due to the greater activity of the ice occupying the main valley in comparison with that in the tributaries, this activity being attributable to the greater volume and thickness of the ice in the former, the result being that the floor of the main valley is overdeepened as compared with that of its tributary, so that when the ice-flood has subsided the tributary river enters the main valley with discordant grade. De Martonne (1910) attributes the formation of hanging valleys chiefly to lateral sapping, though he admits a certain amount of overdeepening, but not on the bars (verrous) across the main valley, near which hanging valleys are also found. Certain members of the second group of authorities regard glaciers in the tributary valleys a$ protecting their floors, while the rivers of the main valley lower their bottoms by normal stream erosion. A consideration of the satisfactory nature of one or other of these explanations arose during two visits to the upper Rangitata in company with three of my colleagues, when we were fortunate in having ample opportunity of observing more perfect suites of such valleys than it had been my fortune to see previously. ‚ One group of these occurs on the left (eastern) bank of the Havelock _ River, on the western slope of the Cloudy Peak Range, a spur running from Spricut.—Hanging Valleys of the Upper Rangitata Valley. 91 the main divide between the Clyde and the Havelock rivers, the two main feeders of the Rangitata. Cloudy Peak (7,870 ft.) is a fine rocky mass near the end of the spur, forming a counterpart to Mount d'Archiac (9,979 ft.), which lies just opposite, on the western side of the Havelock Valley, on a spur of the Two Thumb Range (see map). Two of the hanging valleys are in the most perfect condition; they have the characteristic : U-shaped cross-section of a glacial trough with enlarged head, and enter the main stream by waterfalls (Plate 8, figs. 1, 2). d SKETCH MAP OF HEAD WATERS RANGITATA RIVER aS. cate of Miles 8 М“ Coys Рк ? 6800 Tyndall C: сосе Bedex E DE A SS & M? re ы Arrowsmith | ч э/7/' Qe a сү E M'Edison . AN ud. "Xx 7669 Mt Jo lli Р ©, - аў NW M