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Notes and Descriptions of some New or
Hitherto Unrecorded Species of Fossils
From the Cambro-Silurian (Ordovician)
Rocks of the Province of Quebec.

By henry M. ami, M. A., F. O. S.

Notes and Descriptions of some New or
Hitherto Unrecorded Species of Fossils
From the Cambro-Silurian (Ordovician)
Rocks of the Province of Quebec.

/

By henry M. ami, M. A., F. <f. S.

" ReprinUd/rom the Canadian Ri cord of Science, April, lS',»i!.

Notes and Descriptions of Some New or
Hitherto Unrecorded Species of Fossils
From the Cambro-Silurian (Ordovician)
Rocks of the Province of Quebec. '

By Henrv M. Ami, M. A., F. G. S.

BRVOZOA.

SoLENopoRA coMPAOTA, Billiiigs, vai'. MINUTA, N. var.

Zoarium, consisting of small globular or irrogularly
hhaped masses which are apparently amorphous and com-
pact to the naked eye, but exhibit under a microscope the
typical and characteristic structure of the genus Solenopora
(Dybowski). One of the specimens measures 5-40ths. of
an inch in height and 1540lhs. of an inch in diameter, in
the direction of the section which is cut partly at right
angles to the tubes and partly in direction of the tubes i. e.,
parallel to them.

The species evidently belongs to the genus of which Soln-
nopora comparta, Billings, is the type, and is almost identical
with it. The tubes or zo(ccia, however, are more closely
arranged and more numerous, being proportionally smaller
in the Quebec specimens than in the typical examples
from the lower beds of the Ti'cnton formation of other
portions of Canada. The tubes in the example, from Quebec
also appear to be more tortuous, and at times resemble the

' N-B.— Throughout the te.xl, the terois, cM, hiierteitial cell, zrncium, Hplniform
tubuli, etc., have been used by the >vriter in order to be uniform with the termin-
ology employed by Mr- Foord, in his " Contributions to the Micro-Palaeontology
of the Cambro-Silurian rock? of Canada," 1^83. I very much prefer the terms

K-anthoporvx," etc , now employed by Messrs. Foord,

' autoporen,

' mennporex.

Ulrich and other authors.

!)8

CtiiKulinn llecord "f Scknre.

structure ohservod in such fdi'iiiH ns (lirvdhcUa or Sircpho-
cheius. or (lie ;;'('nMB Solnwjinni, thoie upjx'jir lo he two, anil
perhaps throe distinct forms tVom the ( "anihro .Sihnian or
Ordovician strata of Canada.

1. One of tliose, the typical Solenopora compacfn, Hillings,
sp. (- Stioinafopora eoni])acta, JJiiiings; Stenopora com-
pacta, DawsOM ; -^Tetradium Pea(diii, Nioh. ami I'lthcridge;
- So]onoj)ora sponi^ioides, Ih'howski; -Totradiuni I'oachii,
var. Canadonso, Foord ; (< 'ymafopora comjiaeta, Dwii^'ht,
M.S.S.) ocelli's in ahunthmce through a co!isideral)U^ tliick-
ness of the lower beds of the 'J'rcnton of Onlai-io and
Quebec, and has /o(ecia varyinif from 1-320 th. to 1-400 th.
of an inch in diameter, whilst the Scotch representative
described by l)i-. Nicholson and J\[r. Ktheridge, jr., has
zod'cia which measure 1420 th. of an inch — '• ono-thirty-
tiftb of a line " — in diameter.

2. A second species of this genus Solenopora, occurs in the
limestones of the Jiii'd's Kye and Black Eiver foi-mation at
Paquetle's Rapids, on the Ottawa Eiver. This locniit}- is
t'eferred to by lUllings ;is one of the phices where this
Stromatopora (now Solenopora) cowpucta could be found,
and gives no figure nor microscopic characters whei-eby the
■species may be recognized. Now that Solenopora compnrfn,
liillings sp., is a well eHtabli^hed species which tinds place in
the nomenclature of jiresent writers, it apj)ears fi'om an
examination of micro.^eopic sections of the Pa(iuettoEapids
foi-m, that it is distinct from the oi'dinary form and is
readily distinguished therefrom by the large size of its
zo(ecia— they vary fr(»m IGO to 200 in the space of one
inch, i ('., each zoiecium varies from l-KJOth. to l-200tb.
of an inch in diameter. The specific name Solenopora
Paquetfiana, is here proposed to receive such forms as
this which pi'Osent the generic characters of the genus
Solenopora, but have zo(eeia or tubes much larger than in
S. comjiacta, and also less wavy. The zoarium is also con-
siderably larger than ordinary specimens oi" S. rompacta. No
diaphragms have been detected in the longitudinal section
of this form. There must obviously have been diaphragms

Unrecorded Species of Fossifs.

9J>

at more or loHs regular inlervairt in ilic Uiln's, hut, :i.s in
most Hj)ecimons ()f'>S'. compacta, they uve not evident. Very
nkilAiIIy preparid seftionn of esj)Ccially well jjreserved
examples from the Tienton locks of Pou^hkecpsic, N. V.,
kindly pifsented to the writer hy Prof. W. B. Dwi^ht, of
\'assar Collyi^e, have revealed the tabuhe of »S'. compacta.

3. 'i'iu! third form occurs in the liurd compact eherty
limeHtone rocks of (Quebec city al (V>te d'Abraham. and
closely resembles the ty|)e species S. compacta, but is clearly
distinct from *S'. Pai/uetti((na, both from the si/,e and
regularity of its tidjes. From .V. compacta, the Quebec
variety ' miiiuta,' differs in liaving smaller /.oiecia, less
regularly ai'ranged and olten very tortuous. There are
fr.om 480 to nearly 600 tubes in the sjjace of one inch, and
these ai-e all in close contact. No septal teeth orspirdform
projections I'rom the wall inwardly have been detected in
any of the zoa-cia, which are irregularly rounded polygonal
and triangular at times.

Tnder the microscope this form, S. compacta, var. miniita,
may be readily distinguished from the other two species,
and on this account has had the varietal designation affixed.

Locality.— Cole d'Abraham, (Quebec City, Quebec.

Collectors.— IL M. A. and X. .). Giroux,Ys88.

Micro Sections. — 2,110 and 2,115. Prepared by Mr. T. C.
Weston.

DlCRANOPORA PARVA, N. Sp.

Length of the only specimen (fragment) examined : '175
inch ; breadth, "05 of an inch. Tliere are from six to eiglit
rows of cells across the polypary which are obliiiuely dis-
posed in lines, so as to give to the /ou'rium a quincunxial
arrangement which is characteristic and evident. Between
the cell apertures, whose margins are somewhat thickened,
are seen low depre.s.sed and indistinct lines which give a
slightly longitudinal aspect to the rows of cells, besides the
obli(£ue or quincunxial disposition. This form appears to be
distinct from those described by Mi-. Ulrich from the
Cincinnati group of Ohio, and tlie name JD.parva is here
suggested for this form.

TOO

Canadian Record of Science.

Locality.— (iix^non'fi Hoat-h. iioiir the Ijoundury between
Mutiintu' and McNider Townnhips. Ciuebec.

CoUector.—'W < '. Wcbton. 1S87.

pRAsopoRA LYcoi'ERDON, Vaniixiini var. Selwyni,

N. VAR.

Zoarium sub-hemispherical, masBive, about half an inch
in diameter and the same dimension in height; tubes
erect, prismatic.

Tangential or cross section. This section exhibits the
chai-acters and gonei-al features of the genus Prasoi>ora,
Nich. and Kther, jr. The zocecia are polygonal however,
and in close contact witii one another, there being
only an occasional interstitial cell developed between the
zod'cia. This almost total absence of interstitial cells, so
prominent and characteristic in tyjtical examples of Praso-
pura lycnperdon, Vanuxcm, ( -P. Seiwyni, Nicholson), from
the Trenton formation of Canada and the United States,
differentiate the Quebec species or variety from the typical

species.

Longitudinal section. This section shows the characters
of P. lycoperdon, save the smaller or interstitial cells with
closely arranged tabulu' which appear to be wanting. The
curious oblique funnel-shaped or invaginating diaphragms
with tabuhe developed in them at different heights, are
exceedingly striking and characteristic; some of the
zorecia pres^ent horizontal and straight diaphragms
from wall to wall. There are about 72 zooecia in the space
of one inch, or each zofficium is -0138 inch in diameter. In
this character this variety comes closer to the smallest
representatives of the type (P. lycoperdon Vanuxem or P.
Seiwyni of Nicholson), which are l-70th of an inch in
diameter.

Locality.— In the hard cherty limestone bands of Cote
d' Abraham, Quebec City, Quebec.

Collectors.— B.. M. A. and N. J. (liroux, 1888.

Micro sections.— ^OH. 2,107, 2,108, 2,109, 2,116. Prepared
by Mr. T. C. Weston.

Unrecorded Species of Fossih.

101

DlPI.OTHYI'A QlKHECENsIS, X. Sp.

Zotti'iuin 8ult-liemiK|)hei'iciil, base cotuavo, heii^ht about
two liiiess, diametor about balf un inch.

Tangential or crosf] Sfytion. Zou'cia about 1-60 tb. inch in
"lianiotor. varying from 1-50 tb. to 1-7") th. of an inch. In
Hliape, the zoa'cia are polygonal, but often circular, mostly
in contact, but at times one zoiccium is almost completely
isolated by the presence of interstitial cells, which are
develo])ed througbout the zoarium but in greater number
in certain portions of it. The interstitial cells vary con-
siderably in shape, size ami distribution, being often
triangular, hour-glass shaped, and four, five, and even six
sided at other times. No spiniform tubuli are seen in this
section.

Vertical or lonyitudinat section. The tubes are perpendi-
cular to the base of the zoarium and regularly disposed. The
walls are comparatively thick, and especially in the upper
portion of the zoarium. The /-0(ecia have a few distinct
horizontal or slightly curved tubuhe or diaphragms, whilst
the interstitial cells luive more numerous and horizontal
diaphragms developed.

Note. The paucity of tubuli in the specimen examined
may be due to its state of preservation or fossilization, as
the few that are seen in the zoo'cia are only faintly visible
in the coarsely crystalline calcite which fills the tube. No
spiniform tubuli are seen in this section.

This species is most nearly related to Diplotri/pa Milleri,
Ulrich, but differs therefrom in possessing much fewer
diaphragms, both in the zo<ccia and in the interstitial cells.

It differs also from D. IVhiteavesii, Nicholson, D. Petro-
politana, Pandei*, B. regularis, Foord, and D. injida, Ulrich,
in possessing no spiniform tubuli.

Locality. — In the hard calcareous beds of Cote d'Abraham,
Quebec City

Collectors. — If. M. A. and N. J. (iiroux, 1S88.

Micro sections. — 2,113. Also prepared by Mr. T. C. Weston.

102

Canadian Record of Science.

MONOTRYl'A INCERTA, N. Sp.

Zoiii'ium, small, sub-cyliiidiieul or irreiiuhiily cloiigute
Hub-sphorical, lieight, -25 inch ; longer diiuneter, '375 inch ;
shorter diiimeter, -25 inch.

Tangential section. In langonliiil sections, the zocecia are
seen to be i-egulavly polygonal of uniform size, and
apparently of one kind only. The walls arouml each ai-e
clearly visible and are only moderately thickened. Occa-
sionally a smaller /o<cciuni is developed between the larger
ones, but apjiears to be only an immature zo(ecium and
di tiers in no respect from the hu'ger or proper zooccia.
There are no interstitial cells at all. The other generic
characters are also evident.

Longitudinal section. This section exhibits the uniform
prismatic chaJ'acter and regular size of the tubes. Dia-
phragms are tolerably numerous and straight, whilst at
times they have a decided curvature. These are distant
from each other one tube diameter or thereabouts.

The zoa'cia aie -Olofa' inch in diameter, or number 64 in
the space of one inch, a -i measured both \n the tangential
and longitudinal sections.

Locality. — In the hard compact cherty beds of limestone
of Cote d'Abraham, C/ity of Quebec, Quebec.

Collectors.— 11. M. A. and N. .1. liiroux, 1888.

Micro sections. — 2,111, 2,112 and 2,1U. Prepared by Mr.
T. C. Weston.

Doubtful Species.

Besides the foregoing species of Monticuliporidsu and
Bryozoa which wore obtained from the hard calcareous
band of Cote d'Abraham, Quebec, there occur m addition,
two forms whose generic and specific altinities ai"e still
doubtful, since the material from which Mr. Weston pre-
pared the microscopic slides which contains both is some-
what imperfect and poorly preserved, most of the structure
of one j)oIypary having been obliterated in the one, and in
the other case the matrix is veiy granular, which fact gives
a gi-anular and obscure aspect to the organism. The spe-

1
I

Unrecorded Species of Foasih

103

I

r

1
I

cimcn from which tho slide was propaied, was obttiiiied
also fjom Tote d'Ahraham, (Quebec, and the number of the
slide or section is 2,117. For reference sake the two forms
are designated A. and li. respectively.

FOK-M A.

(lENUS? — Si'EOIES — ?

This form consists of a small, narrowly cylindrical or
slightly flattened polypary, with one row of rather deeply
and obliquely situate cells on each side of the median axis
or line which separates the zoarium into two parts. The
zoarium measures seven-sixtieths ("116) of an incii in
diameter, whilst the width of tho zofccia or tubes al their
apertui'O measures less than 1-lOOth, of an inch in
diameter. The ])olypary is obtusely rounded at one
extremity — the distal extremity of the zoarium — and the
colls are inclined at an angle of about -IS"-' to tho median axis.
No evidence of tubulffi or diaphragms of any sort have been
observed in +he section. The microscopic section shows the
skeletal parts of the polypar}- to be fibrous in structure. In
a general way, this form appears to belong to the family of
Ptilodi(:tyonida\ but its generic and specific airinities are
still unknown.

FOEM B.

Genus? — Species? —

This form consists of small spheroidal or irregularly
shaped masses which present an exceedingly minute, yet
recognisable radiating tube-like structure with faint
indications of concentric lines. The zoarium (?) appears to
have certain affinities to the genus Solenoponi, Dybowski,
but differs therefrom in the size and distribution of the
corallites (?) and in several other points. It has also been
compared with Girvanella and allied forms, but although
poorly preserved, shows salient characters of difference.

In examining and re classifying the genera and species
of Monticuliporoidi; in our collections, a similar form was
observed in Micro-section 804, prepared by Mr. Weston from a

104

Canadian Record of Science.

specimen of Trenton limestone collected at H'lJl, Quebec, by
Mr.VV. R. Billings in 188l', alongside a species ( flleterotrypa,
probably H. solitaria, I'lrich, wlsicb designation Mr. A. IT.
Fooi'd bas attncbed to tbe slide bolding tbe large polypary.
Though more iri-egularly shaped in outline than the (Quebec
City specimen, the Hull one is evidently and easily seen to
be congeneric and co-specific with it. Along the outer
portion of the zoarium, the radiating tubes (?) or zofccia (?)
are more clearly visible, whilst the central portion is
occupied by more or less regular (somewhat granular) net-
work which resembles a reticulate structure. The dia-
meter of the Quebec City specimen is •0140 of an inch.
The matrix in which both the Hull and the Quebec
specimens are jjresei'ved, is such as to ol)l iterate such a
minute structure as the zoarium (?) evidently possessed.
When found imbedded in a finer grained rock, the exact rela-
tions and true affinities of this interesting form will, it is
hoped, be more definitely ascertained.

PAL^ONTOLOGICAL NOTES.

By Hsnry M. Ami, M.A., F.(i.S.

I.

On a Collection ok Fossils from the Ordovician of .Tolietth,
IN the Province op Quebec-

In the '• Geology of Canada" for 1803, Sir William Logan
has given several interesting notes on the structural re-
lations of the rocks about Joliette (or "Industry" as it is
sometimes called,) and has also shown that the Chazy, the
Bird's Eye and Black Rivci- as well as the Trenton teri-anes
all occur there along tbe shores of L'Assomption River,
whose rapid flowing stream atlords magnificent water power
for saw and carding mills, a found ly and an important paper
factory.

These th f.e Ordovician terranes are beautifully exposed
along the cuffs and banks of L'Assomption River, from under
and close to the mill above the ' upper bridge' to the

Pal(EontoJoii;ica} Notes.

105

' old mill' or • Vieux Moulin,' some two miles below the town.
Some excellent building stone has been extracted and is still
being quarried out, well adapted for railway bridges, piers
and dwellings, whilst the more crystalline beds in the
Desmarais quarries atford a superior ([uality of lime when
burnt.

The Thazy.

The Chazy terrane is characterized by Sir William Logan
aB gradually thinning out in this section of Canada — being
visible and estimated at a thickness of some thirty feet only
— and holding a fossil which Mr. Billings recognised as the
Pleurotomaria staminea, of Hall — now better known as u
Raphistoma, E. staminea, Hall, sp.

This species is eminently characteristic of the Chazy in
many parts of Canada and the United States — so that its
presence leaves no doubt as to the occurrence of the Chazy
at Joliette. It is hoped that future investigations will
afibrd more aniple material wherewith to describe this most
interesting series which gradually dies out a little farther
east and reappears some 500 miles down the St. Lawrence —
at the ^lingan Islands, nurth of Anticosti.

The Bird's Eye and Black IIiver.

The Bird's Eye and Black River terrane of Joliette con-
sists of fifty feet of limestone holding the well known and
typical fossil corals, viz : Columnaria Ilalli, Nicholson, and
Tetradium fibratum. Satford. These tifty feet of stratn form
the base of Sir William Logan's Trenton in this district
whose total thickness he estimated at 4H0 feet.

The Trenton.

During the summer of 1881 the writer had an oppor-
tunity afforded him of examining the beautiful exposures
of this highly fossiliferous terrane along the banks of
L'Assomption River for a distance of some three miles, and
obtained quite an interesting suite of specimens which it is
proposed to place on record in this paper.

106

Canadian Record of Science.

No Trenton foH.sils are described oi- i-efen-ed to by Sir
AVm. Los^an in the volume cited above.

The Trenton, however, is therein described and sub-
divided into three sections in descendini; order as follows : —

Feet.

(a.)— Evenly bedded and dark coloured limestone 200

(6.)— Nodular limestone 140

(c.) — Gray coloured limestone 'JO

Total 4:!0

From a collection made at •' Industr}' Village," in 1852,
by Sir William liOf^an, the following forms have been deter-
mined b}- the writer :

1. Strophomena alternata, Convad.

2. Leptcena sericea, Sowerby.

3. Orthis testudinaria, Dal man.

4. Asaphus Canadensis. Chapman.

It would thus appear from the above list that we have
here strong evidence for the presence of the upper beds of
the Trenton with the probable existence of the Utica ter-
rane. The occuri-ence of Asaphus Canadensis. Chapman,
indicates close proximitj^ to the Utiea, if not indeed the
actual presence of that terrane. The.se facts, therefore, point
to a higher horizon than had hitherto been indicated in the
" Geology of Canada" :ibove cited.

The following list of Trenton fossils is based upon the
collection made by the writer in 1881 — at the (juarries near
the "Pont des Dalles"— and at the old mill, some two miles
down the river below this bridge. As can be readily seen
they are eminently characteristic species. 1 have no doubt
that this list could be swollen to larger proportions as the
I'ocks are highly fossiliferous and the specimens in a very
good stiUe of preservation.

The occurrence of orthoceratites several feet in lenji'th
and in abundance and of beautifully preserved and large
specimens of Gonularia TrentonensisM especially worthy d'
note.

Pahrontoloirirnl Notes.

lOT

List of Tkenton Fossils from Joliktte, Que.

1. Diploijra])ius cf. D.pntiUus, Hall.

'1. S'>li'nopora ronipacfa. IJillin^'s, s{».

?). Sticto_i)ora acuta, Ilall. ,

4. " sp. indt.

5. Ptilodlctyaniaculata, Ulrieh.

<). Mnnotri/peUa Trentont'iisix, Nicholson.

7. Prasopora bjcopcrdon.Y •AwwxQm,

8. Amplexopora Canadensia, Foord.
!•. Scrpvlites disaolHtiis, Billiniis.

10. (ilijptacrinm ramulosus, liilliiiifs.

11. Orf/d.<p!icatella. {\)]\vn'\.

12. ■• te.<tudhiaria, Dalmun.

13. S'rophoinena alternata, Couvinl.
1-1. Leptiina sen'eca, Sowcrby.

If). Conuiaria Trentmw.nsts, Hall.

1(5. <''ijrlonemabir(X, Hall.

17. Trocli.nne.ma ambi/icafum. Hall.

IS. Plcuroiomaria Progne, Billiiii,^s.

lit. Endoceras proteifonne. Hall.

20. •' multitubulatum, Hall.

21. Calymene senttia, Coni'ad.
Asaphus plafyce/dialits, Stokot^.

90

2-^. Kboius cf. I. Alil/eri, BWVm^s.
21. Ceraunis pleurrxanihemus, Gj'cen.

Note. — The strata in the iicigliboui-hood of the rapids and
falls below the town point to the existence of local faulting
or dislocations, as they are considerably disturbed and arc
seen to di[) to as high an angle as (J0° to the S.W.
LWssomption Iliver is one of those post-tertiary streams
which is fast catting its way through tlie Leda clay and
Sa.xicava san<l terranes. as also through the uppermost
nieml)ei's of the Caml)ro-Silurian or Ordovician system in
the highei- levels,

108

Canadian Record of Science.

II.

On the Occurrence of Fossil Remains on the Manitou
Islands, Ijake Nipissing, Ontab'o.

The Manitou iHlands — which foi-m a group m six beau-
tiful iHhinds— are pleasantly situated in the basin of Lake
Nipissing, Ontario, and are easily reached by way of jSToi'th
Bay. an itnpoi'tant railway centre along the line of the
Canadian Pacific Railway. Whilst the shores of Lake
Nipissing aie completely made up of Arch;ean rocks,
these islands are seen to consist at several points of sedimen-
tary strata which when examined are found to be rich in
fossil lemains and indicate with tolerable precision the
horizon or period when these strata were laid down.

The occurrence of 'Tet radium jibratum, Satt'ord ; Columnaria
Balli, Nicholson ; Ormoceras Bhjsbyi, Stokes, and an obscure
specimen of Goniceras anceps, Hall, suggest the natural in-
ference that the limestone beds of these islands belong to the
Black River formation.

The early, and, perhaps, only record of fossiliferous lime-
stones on these islands "aolding Orthoceras with a few
obscure fossils" may be found in Alex. Murray's report to
Sir Wm. Logan for the year 1854 ' •' Ormoceras temdfilum
of Hall " is therein noted with considerable certainty and
the strata consequently referred to the Black River for-
mation.

The collection upon which the following list of species
of fossils is based, was made in the summer of 1884 by Dr.
A. R C. Selwyn who was assisted by Mr. 11, P. Brumell.
They comprise seventeen species of Ordovician fossils
characteristic of the Black River formation as follows: —

List op Species.

1. Columnar ia Ilalli.WiahoXmn.

2. Tetradium fibratum, Satt'ord.

3. ? Coscinium proavium, Eichwald.

1 Report of Progress, Qttc], S«rv. Can. 1853-54 55-56, p. 12t.

Pahiontolosical Notes.

100

I ' I

4. Sticfopora acuta. Hall.

5. Pfilodictya recta, Hall.

G. Aiiiplexopora Canadensis, Foortl.

7. 8. Several species of" Monticul>porida\

9. Streptorhynchus filitextum , Hall,

10. Rhynchonella increhescens, Ilall.

11. Ecculiomphalus Trent onens'S, (?) Conrad

12. Pkurotomaria suhconica, Hall.

13. Ormoceras liij/sbi/i, Stokes.

14. " {?)fimforme, IhiW.

15. Endoceras multitubulatuni (1) Hall.

(=r Vaginoceras muUitubulatum, II. sp.)
1(». Endoccras proteijorme, TliiW.
17. (?) (roniorcras anc<ps, Hall.

iVo^c. — The Rev. .1. M. (iooiwillio, M.A.. who resided in
North Bay some years has just informed me that he has made
an extensive collection of fossil remains from ihese islands,
80 that additional forn\s will doubtless be found when the
collection is examined.

Ottawa, Feb. 1892.