Postilla Published by the PEABODY MUSEUM OF NATURAL HISTORY YALE UNIVERSITY New Haven, CT 06520-8118 Number 219 29 December 1999 A Type Catalog of Fossil Invertebrates (Mollusca: Actinoceratoidea, Bactritoidea, Endoceratoidea and Nautiloidea) in the Yale Peabody Museum Russell D. White Division of Invertebrate Paleontology Peabody Museum of Natural History Yale University Laura K. Skorina Division of Invertebrate Paleontology Peabody Museum of Natural History Yale University Postilla Published by the PEABODY MUSEUM OF NATURAL HISTORY YALE UNIVERSITY Curatorial Editor-in-Chief Jacques Gauthier Executive Editor Lawrence F. Gall Publications Editor Rosemary Volpe Published at irregular but frequent intervals since 1950, Postilla presents short papers based on original scientific research by Yale Peabody Museum staff and research associates, and their colleagues, in the natural science disciplines represented by the collections of the Yale Peabody Museum’s curatorial divisions. All manuscript submissions are sent out for external peer review by one or more referees, as well as being reviewed internally at the Peabody Museum by the Executive Editor in consultation with the Curatorial Editor-in-Chief and one or more members of the appropriate curatorial division. Interested authors should contact the Executive Editor at the address below before submitting manuscripts. Other titles published by the Yale Peabody Museum are the Bulletin of the Peabody Museum of Natural History and the Yale University Publications in Anthropology. A complete list of titles, availability and ordering information as well as submission guidelines for contributors can be obtained from the Yale Peabody Museum website at http://www.peabody.yale.edu/publications/ or requested from the Publications Office at the address below. Address correspondence to: Publications Office Peabody Museum of Natural History Yale University 170 Whitney Avenue Phone: (203) 432-3786 P.O. Box 208118 Fax: (203) 432-9816 New Haven, CT 06520-8118 USA E-mail: peabody.publications@yale.edu ISBN 0-912532-50-5 Printed in the U.S.A. This paper meets the requirements of ANSI/NISO Z39.48-1992 (Permanence of Paper). Peabody Museum of Natural History Yale University New Haven, CT 06520-8118 (Received 9 June1998) Abstract Type material for 220 nominal species of fossil actinoceratoids, bactritoids, endoceratoids and nautiloids are in the Invertebrate Paleontology Collections of Yale University’s Peabody Museum of Natural History. Primary types for 158 nominal species include 133 holotypes, 64 syntypes (representing 18 nominal species), one lectotype and two neotypes. Secondary types for 22 nominal species include 90 paratypes. Tertiary types of 98 nominal species include 159 hypotypes. Most types are from Coahuila (Mexico), Newfoundland, New York State and Quebec and have been described by R.H. Flower, A.F. Foerste, J. Hall and A.K. Miller. Key Words Type Catalog, Actinoceratoidea, Bactritoidea, Endoceratoidea, Nautiloidea, Yale Peabody Museum, Coahuila (Mexico), Newfoundland, New York State, Quebec, R.H. Flower, A.F. Foerste, J. Hall, A.K. Miller. Copyright © 1999 by the Peabody Museum of Natural History, Yale University. All rights reserved. No part of this publication, except brief quotations for scholarly purposes, may be reproduced without written permission of the Director, Peabody Museum of Natural History. ISBN 0-912532-50-5 Posti [ la Number 219 29 December 1999 A Type Catalog of Fossil Invertebrates (Mollusca: Actinoceratoidea, Bactritoidea, Endoceratoidea and Nautiloidea) in the Yale Peabody Museum Russell D. White and Laura K. Skorina Introduction This catalog lists all known fossil actinoceratoids, bactritoids, endoceratoids and nautiloid types in the Invertebrate Paleontology Collections housed in Yale University’s Peabody Museum of Natural History. This is the tenth in a series of type catalogs of fossil invertebrates and is a product of an ongoing computerization project to improve the accessibility of the type collections. Fourteen type specimens are missing and cannot be located. The collections have been thoroughly searched by the curatorial staff in the 1960s and 1990s and it is believed that these specimens are perma- nently lost. Missing specimens are indicated with a footnote, and any information on their whereabouts would be greatly appreciated. Organization Specimens are listed under the originally described binomen; genera and species within genera are indexed alphabetically. Each entry includes the catalog number used by the Division of Invertebrate Paleontology prefixed with the abbreviation YPM and the type status of the original designation, followed by all known refer- ences to that name. Any subsequent designations are listed under the original! designation and are cross-referenced in | body of the text. Locality descriptions io! ow each entry or set of entries for each binomen. Errors and inconsistencies are footnoted at the bottom of each binomen. 2 Type Catalog of Fossil Nautiloidea et al. The type designations used are holotype, syntype, lectotype and neotype for name bearers; paratype for secondary types; hypotype is used for all tertiary types. Name bearers and secondary types are defined as used in the /nternational Code of Zoological Nomenclature (ICZN 1985). Tertiary types or hypotypes are treated here as any specimens used in an original species description but not explicitly designated primary or secondary types, any described, figured or measured specimen used in a publication to augment the knowledge of a previously defined species, or any refer- enced specimen that cannot be placed unequivocally in a known species (e.g., Armenoceras sp.). Locality descriptions follow each entry or set of entries with identical locality data. The locality information includes the stratigra- phy, geography, collector and date. Stratigraphy has been standardized using Stratigraphic Nomenclature Databases for the United States, its Possessions and Territories (MacLachlan et al. 1992). Catalog of Actinoceratoidea, Bactritoidea, Endoceratoidea and Nautiloidea Actinoceras carletonense Foerste HototyrpE YPM 20478 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.291, pl.42, f.3, pl.43, f.1,2.° Late Ordovician, English Head Fm, English Head zone 4. Carleton Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 35, Twenhofel Collection on p.291. Actinoceras gamachense Foerste HototyPpe YPM 3846 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.290, pl.41, f.8, pl.42, f.1,2. Ordovician, Ellis Bay Fm, Ellis Bay zone 5. Ellis Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Postilla 219 Actinoceras serum Foerste Hototyre YPM 3845 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.290, pl.41, f.4,5. Early Silurian, Chicotte Fm, Chicotte zone 1. Jumpers, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. Adamsoceras transversum Flower PARATYPE YPM 28353 Flower, R.H. 1976. New Mexico Bur. Mines Min. Res. Mem. n.28, pt.1, p.12, pl.5, f.2,3,5. Middle Ordovician, Table Head Grp. Division 10 or K, lower Table Head, lower Chazy, NE side of Table Head, western Newfoundland, Canada. Collector: Schuchert, C. and Twenhofel, W.H., 8/6/1910. Amphicyrtoceras cooperi Foerste HototypE YPM 13148 Foerste, A.F. 1936. Bull. Denison Univ. Sci. Labs Vedi. 0.7/8. pl.16; f.2a,.b: Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pape2 in pi227: Middle Silurian, La Vieille Fm. RR cut above La Vieille, Quebec, Canada. Collector: Cooper, G.A., 8/1/1929. Amphicyrtoceras futile (Billings) NeotyPpe? YPM 3866 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.311.° Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.230, pl.6, f.3A.” Silurian, Jupiter Fm. East Jupiter Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. HypotyrpeE YPM 3867 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. net54, p:oilde Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can: ser.3,.¥222)n-4; p: 230 plhnleameie Middle Silurian, Jupiter Fm, Jupiter zone 5. East Jupiter Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1908. HypotypE YPM 3868 Postilla 219 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.311. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.230, pl.6, f.3b.° HypotyPpeE YPM 3946 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.311. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.230, pl.6, f.3c.° HyrotyPpe YPM 3947 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.311. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.230, pl.11, f.7b." Silurian, Jupiter Fm, Jupiter zone 7. Cliff E of Jupiter River, Anticosti Island, Quebec, Canada. Collector: Schuchert, C. and Twenhofel, W.H., 6/1908. HyrotyPpE YPM 3948 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.311. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.230, pl.6, f.3d.° Middle Silurian, Jupiter Fm. East Jupiter Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as “selected as a Topotype,” but probably was intended to be the neotype. ’Cited as “the topotype,” but was probably intended to be the neotype. “Cited as YPM 3867A. “Cited as YPM 3868A. “Cited as YPM 3868B. ‘Cited as YPM 3868C. 9Cited as No. 49B, Twenhofel Collection. Amphicyrtoceras gunense Foerste Hototyepe YPM 3880 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n54; p:312) pli50) 1-78) Middle Silurian, Gun River Fm, Gun River zone 3?. East Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Type Catalog of 3 Fossil Nautiloidea et al. Apsidoceras depressum Cooper HototyrpE YPM 12921 Cooper, G.A. 1930. Am. J. Sci. v.220, n.118, p.286, pl.3, f.11-13. Foerste, A.F. 1936b. J. Paleont. v.10, Nr; Prorge Late Ordovician, Richmondian, Whitehead Fm. Grande Coupe, near the mouth of the small brook in a deep gash on the E side of Mount Ste. Anne about 1 mi N of Perce, Gaspe Peninsula, Quebec, Canada. Collector: Northrop, S.A., 8/1927. Apsidoceras magnificum altum Foerste HototyPeE YPM 3844 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.282, pl.39, f.1. Late Ordovician, Ellis Bay Fm. Table Hill, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Apsidoceras magnificum major Foerste Syntype YPM 3842 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.281, pl.36, f.3,4. Syntype YPM 3843 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. Nlibo4-p:2eir Ordovician, English Head Fm, English Head zone 4. Makasti Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. SyntyPpE YPM 26809 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.281.° Late Ordovician, English Head Fm, English Head zone 4. Caplan River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 34, Twenhofel Collection. Armenoceras angustum Foerste HoLotypE YPM 3848 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.297, pl.48, f.1. Silurian, Jupiter Fm, Jupiter zone 10. Jumpers, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. 4 Type Catalog of Fossil Nautiloidea et al. Armenoceras chicottense Foerste HototyPpE YPM 20510 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.294, pl.45, f.1,2.° Middle Silurian, Jupiter Fm. Cliff W of Iron River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. HypotyPpE YPM 20494 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.294.” Middle Silurian, Jupiter Fm. Sand cliff, 3 mi up Jupiter River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 37, Twenhofel Collection. *Cited as No. 38, Twenhofel Collection. Armenoceras excentrale Foerste HototyrpeE YPM 20477 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.294, pl.46, f.1,2.° Middle Silurian, Jupiter Fm, Jupiter zone 8. East cliff of Iron River, Antcosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 39, Twenhofel Collection. Armenoceras gasconsense Foerste HyrotyepeE YPM 12708 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.74. Middle Silurian, Niagaran, La Vieille Fm. Near the top of the limestone, ridge W of Port Daniel RR station which extends from Clemville N to Barrachois, Quebec, Canada. Collector: Schuchert, C., 8/1923. Armenoceras cf. gasconsense Foerste Hyrpotype YPM 12714 Northrop, S.A. 1939. Geol. Soc. Am. Spec. Paps2ip:227,. Middle Silurian, Niagaran, La Vieille Fm. Lower 50 ft of Knobby limestone in RR cuts about 1.5 mi E of Gascons, Quebec, Canada. Collector: Schuchert, C., 8/1923. Hypotyrpe YPM 13149 Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.227. Postilla 219 Middle Silurian, Clintonian, La Vieille Fm. RR cut above La Vieille coast, Quebec, Canada. Collector: Cooper, J.W. Armenoceras jupiterense Foerste Hototype YPM 20493 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.296, pl.42, f.7, pl.47, f.1-3.° Middle Silurian, Jupiter Fm, Jupiter zone 4. W of Heath Point Fault, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. Hypotype YPM 3847? Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.297. Middle Silurian, Jupiter Fm, Jupiter zone 8. South Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. “Cited as No. 40, Twenhofel Collection. PA thorough search of the collections by the curatorial staff in the 1960s and 1990s could not locate this specimen. It is believed to be permanently lost. Armenoceras sp. HyrotyPpE YPM 17329 Miller, A.K. and W. Youngquist. 1947. J. Paleont. v.21, n.1, p.16, pl.7, f.1,2. Late Ordovician. Small island about 1 mi NW of Read Island, Canada. Collector: Cloud, P.E., 7/29/1938. HyrpotyrpE YPM 17331 Miller, A.K. and W. Youngquist. 1947. J. Paleont. v.21, n.1, p.16. Late Ordovician. Shore of one of the small inland lakes on Liston Island, Canada. Collector: Cloud, P.E., 7/31/1939. HyrpotyrpeE YPM 26812 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.298.° Late Ordovician, English Head Fm, English Head zone 4. Makasti Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 41, Twenhofel Collection. Armenoceras wellsae Foerste HyrotyPpE YPM 12710 Postilla 219 Type Catalog of 5 Fossil Nautiloidea et al. Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.73, pl.18, f.1a,1b. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.226. Middle Silurian, Niagaran, La Vieille Fm. Lower 50 ft of knobby limestone in RR cuts about 1.5 mi E of Gascons, Quebec, Canada. Collector: Schuchert, C., 8/1923. Armenoceras cf. wellsae Foerste HypotypeE YPM 12706, 12713 Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap: 21, p.226. Middle Silurian, Niagaran, La Vieille Fm. Lower 50 ft of knobby limestone in RR cuts about 1.5 mi E of Gascons, Quebec, Canada. Collector: Schuchert, C., 8/1923. Asaphiceras schucherti Foerste HoLotyrpe YPM 3871 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.314, pl.58, f.2,3. Silurian, Jupiter Fm, Jupiter zone 2. East Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Bactrites mexicanus Miller Syntype YPM 15279° Miller, A.K. 1944. Geol. Soc. Am. Spec. Pap. 52, p.82. =Bactrites? mexicanus. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.33. Late Permian. Beds 5 and 7 of Difunta section, concretionary shale, collection made along strike from Cerro Wencelao on S to 300 m W of El Indio on N, NW of Las Delicias, Coahuila State, Mexico. Collector: King, R.E. SyntyPE YPM 16277 Miller, A.K. 1944. Geol. Soc. Am. Spec. Pap. 52, p.82, pl.20, f.8,9. =Bactrites? mexicanus. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.33, pl.8, f.8,9. Early Permian. Bed 18 of Malascachas section, Perrinites shale 2600 to 2800 m S42E of Noria de Malascachas, NW of Las Delicias, Coahuila State, Mexico. Collector: King, R.E. Syntype YPM 16278 Miller, A.K. 1944. Geol. Soc. Am. Spec. Pap. 52, p.82, pl.21, f.4-6. =Bactrites? mexicanus. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.33, pl.3, f.10-12. Late Permian. Bed 6 of Difunta section, concre- tionary shale, collection made along strike from Cerro Wencelao on S to 300 m W of El Indio on N, NW of Las Delicias, Coahuila State, Mexico. Collector: King, R.E. “This is a lot of approximately five specimens. Bactrites? mexicanus Miller See Bactrites mexicanus Miller. Bactrites postremus Miller Syntype YPM 12929° Miller, A.K. 1930. J. Paleont. v.4, n.4, p.389. SyntyPE YPM 12929A Miller, A.K. 1930. J. Paleont. v.4, n.4, p.389, pS8s fl: Late Pennsylvanian, Gaptank Fm. Upper Gaptank, 4.5 mi S, 15 E of Lenox, Brewster Co., Texas, USA. Collector: King, P.B., King, R.E., and Baker, C.L. “This is a lot of approximately 10 specimens. Beloitoceras accultum Foerste HoLtotyPpE YPM 20487 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.306, pl.50, f.1.° Late Ordovician, English Head Fm, English Head zone 3. MacDonald River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 48, Twenhofel Collection. Beloitoceras (?) fererectum Foerste HoLotyPpE YPM 3863 Foerste, A.F. 1928a. Mem. Can. Geol. Surv n.154, p.309, pl.50, f.3,4. Late Ordovician, Ellis Bay Fm. Cape James Anticosti Island, Quebec, Canada. Collectio Twenhofel, W.H., 1909. Beloitoceras fragile (Billings) NeotyPeE? YPM 3853 6 Type Catalog of Fossil Nautiloidea et al. Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.305, pl.40, f.11,12.° Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.229, pl.11, f.5.° Late Ordovician, Ellis Bay Fm, Ellis Bay zone 5. Top of White Cliff, Ellis Bay, Anticosti Island, Quebec, Canada. Collector: Schuchert, C., 1908. HyrpotyrpE YPM 3494 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.305. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.229, pl.7, f.3a.” Hypotype YPM 3495 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.305. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.229. Ordovician, Ellis Bay Fm, Ellis Bay zone 5. Cape Eagle, E side of Ellis Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. HypotyPpE YPM 3496 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.305. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.229. Late Ordovician, Ellis Bay Fm, Ellis Bay zone 7. Cliff between Bear Cliff and Cape Eagle, Anticosti Island, Quebec, Canada. Collector: Schuchert, C. and Twenhofel, W.H., 6/1908. HypotyPpe YPM 3497, 3498° Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.305. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.229. Late Ordovician, Ellis Bay Fm, Ellis Bay zone 5. W side of Ellis Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. HypotyPpE YPM 3854 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.305. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.229. Postilla 219 Ordovician, Ellis Bay Fm, Ellis Bay zone 5. Cape Eagle, E side of Ellis Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. HyrotyPpE YPM 3855 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.305. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.230, pl-.7, f-3b: Late Ordovician, Ellis Bay Fm, Ellis Bay zone 7. Cliff between Bear Cliff and Cape Eagle, Anticosti Island, Quebec, Canada. Collector: Schuchert, C. and Twenhofel, W.H., 1908. HyrotyPpE YPM 3856 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.305. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.229. Late Ordovician, Ellis Bay Fm, Ellis Bay zone 5. W side of Ellis Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. “Cited as topotype, but probably was intended to be the neotype. °Cited as YPM 03854a. “A thorough search of the collections by the curatorial staff in the 1960s and 1990s could not locate this specimen. It is believed to be permanently lost. Beloitoceras(?) jamesense Foerste SyntyPpE YPM 3860 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.308, pl.48, f.3, pl.50, f.2. Syntype YPM 3861 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.308, pl.48, f.4. Late Ordovician, Ellis Bay Fm. Cape James, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Beloitoceras magisterium Foerste Hototyepe YPM 20523 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.307." Late Ordovician, English Head Fm, English Head zone 4. Cliff 0.5 mi E of Caplan River, Anticosti Postilla 219 Type Catalog of 7 Fossil Nautiloidea et al. Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. Hypotype YPM 20485 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.307, pl.52, f.1. Late Ordovician, Vaureal Fm. Bank W of West Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 46, Twenhofel Collection. Beloitoceras obstructum Foerste HototyPeE YPM 3859 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.307, pl.52, f.2,3.° Late Ordovician, Vaureal Fm, Vaureal zone 2. Girard Cove, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. “Incorrectly cited as YPM 8859. Beloitoceras percurvatum Foerste HypotyPpE YPM 3499 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.305. Ordovician, Ellis Bay Fm, Ellis Bay zone 7. Ellis Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. HypotyPpE YPM 3857 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.305, pl.49, f.5. Late Ordovician, Ellis Bay Fm, Ellis Bay zone 6. W side of Ellis Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. Beloitoceras (?) percurvatum Foerste HypotyPE YPM 3858 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.306. Ordovician, Ellis Bay Fm, Ellis Bay zone 7. Ellis Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Bickmorites barbensis Foerste HyrpotyPpE YPM 12740 Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap: 21, p:226: Middle Silurian, Niagaran, Gascons Fm. Shore, W of mouth of Anse-a-la-Barbe River, Quebec, Canada. Collector: Northrop, S.A., 1927. HypotyPpE YPM 25668 Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.226.° Middle Silurian, Niagaran, Bouleaux Fm. Shore of bay, Anse-a-la-Barbe, Quebec, Canada. Collector: Schuchert, C., 8/1905. “Incorrectly cited as YPM 12750. Billingsites acutus Foerste Hototyrpe YPM 3810 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.261, pl.28, f.1-3. Late Ordovician, Ellis Bay Fm, Ellis Bay zone 1. Junction Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Billingsites anticostiensis (Billings) HypotyPE YPM 3804 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.259. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.225. Ordovician, English Head Fm, English Head zone 4. Carleton Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. HypotyPpE YPM 3807 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. MelS4 7259. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.225, pl.1, f.7.° Late Ordovician, Ellis Bay Fm, Ellis Bay zone 7. Cliff between Bear Cliff and Cape Eagle, Anticosti Island, Quebec, Canada. Collector: Schuchert, C. and Twenhofel, W.H., 6/1908. Hyrotyee YPM 3939° Foerste, A.F. 1928a. Mem. Can. Geol. Su: n.154, p.259.° Foerste, A.F. 1928b. Proc. Trans. Roya Can. ser.3, v.22, n.4, p.225. Late Ordovician, Ellis Bay Fm, Ellis Bay zone 5. Ellis Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. 8 Type Catalog of Fossil Nautiloidea et al. HypotyepeE YPM 20803 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.259. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.225, pl.1, £.6.° Late Ordovician, English Head Fm, English Head zone 4. Oil River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. Hyrpotype YPM 26895 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.259.° Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.225. Late Ordovician, Ellis Bay Fm, Ellis Bay zone 7. Junction Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. *Cited as YPM 3807a. PA thorough search of the collections by the curatorial staff in the 1960s and 1990s could not locate this specimen. It is believed to be permanently lost. “Cited as No. 4, Twenhofel Collection. “Cited as No. 7a, Twenhofel Collection. “Cited as No. 5, Twenhofel Collection. Billingsites canadensis (Billings) HypotyPeE YPM 3809 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.260. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.225. Miller, A.K. 1932b. Univ. lowa Stud. Nat. Hist. n.226, v.14, n.4, p.24, pl.4, f.3-6. Ordovician, English Head Fm, English Head zone 4. Carleton Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. HyrotyPpE YPM 20519 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.260, pl.40, f.3.° Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.225, pl.1, £2. Miller, A.K. 1932b. Univ. lowa Stud. Nat. Hist. n.226, v.14, n.4, p.24, pl.4, f.2. Postilla 219 Late Ordovician, English Head Fm, English Head zone 4. Oil River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as Twenhofel Collection in explanation for pl.40, f.3. °Cited as No. 9, Twenhofel Collection. Billingsites logani Cooper Hototyrpe YPM 12922 Cooper, G.A. 1930. Am. J. Sci. v.220, n.118, p.287, pl.3, f.7-10. =Schuchertoceras logani. Foerste, A.F. 1936b. J. Paleont. v.10, n.5, p.379. Late Ordovician, Richmondian, Whitehead Fm. Grande Coupe, near the mouth of the small brook in a deep gash on the E side of Mount Ste. Anne about 1 mi N of Perce, Gaspe Peninsula, Quebec, Canada. Collector: Cooper, G.A., 8/1929. Billingsites newberryi (Billings) HypotypE YPM 20508 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.258, pl.40, f.4.° Late Ordovician, English Head Fm, English Head zone 4. Upper half of North Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as Twenhofel Collection in explanation for pl.40, f.4. Bitaunioceras coahuilense Miller Syntype YPM 16264 Miller, A.K. 1944. Geol. Soc. Am. Spec. Papeo2.p-76; plkZ0)tl,2. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.30, pl.8, f.1,2. Late Permian. Bed 17 of Difunta section, alternating shale and graywacke 60 m N35E of La Difunta, NW of Las Delicias, Coahuila State, Mexico. Collector: King, R.E. Syntype YPM 16265 Miller, A.K. 1944. Geol. Soc. Am. Spec. Pap. 52, p.76, pl.20, f.3,4. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.30, pl.8, f.3,4. SyntyPpE YPM 16266 Postilla 219 Miller, A.K. 1944. Geol. Soc. Am. Spec. Pap. 52, p.76, pl.20, f.5. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.30, pl.8, f.5. SyntyPpE YPM 16267 Miller, A.K. 1944. Geol. Soc. Am. Spec. Pap! 52, p.76; Dl-20; (6.7. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.30, pl.8, f.6,7. Late Permian. Beds 5 and 7 of Difunta section, concretionary shale, collection made along strike from Cerro Wencelao on S to 300 m W of El Indio on N, NW of Las Delicias, Coahuila State, Mexico. Collector: King, R.E. Brachycycloceras kentuckyense Miller, Dunbar and Condra HototyPpE YPM 13977 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, pili; pliant 1,2. =Brachycycloceras normale Miller, Dunbar and Condra. Hyrortyee. Furnish, W.M., B.F. Glenister and R.H. Hansman. 1962. J. Paleont. v.36, n.6, p.1347, pl.179, f.3. Middle Pennsylvanian, Breathitt Fm, Kendrick Shale Mbr. Wolf Branch, Buffalo Creek, Floyd Co., Kentucky, USA. Collector: Jillson, W.R. Brachycycloceras normale Miller, Dunbar and Condra HototyepeE YPM 13976 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, pHlO7>pliart.3i4. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.20. Furnish, W.M., B.F. Glenister and R.H. Hansman. 1962. J. Paleont. v.36, n.6, p.1347, pl.180, f.7,8. Middle Pennsylvanian, Marmaton Grp, Wewoka Fm. 3.5 mi NW of Allen, Pontotoc Co., Oklahoma, USA. Collector: Greger, D.K., 1919. Hyrotyrpe YPM 46520 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.107. Type Catalog of 9 Fossil Nautiloidea et al. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.20. Furnish, W.M., B.F. Glenister and R.H. Hansman. 1962. J. Paleont. v.36, n.6, p.1347. Pennsylvanian, Cisco Grp. 3 mi S and 0.5 mi E of Jacksboro, Jack Co., Texas, USA. Collector: Greger, D.K., 1919. See also Brachycycloceras kentuckyense Miller, Dunbar and Condra. Bradfordoceras hector (Hall) See Cyrtoceras ? hector Hall. Bradfordoceras hector variant alpha Flower and Caster HototyepeE YPM 13740A Flower, R.H. and Caster, K.E. 1935. Bull. Am. Paleont. v.22, n.75, p.241, pl.6, f.4. Late Devonian, Chemung Fm. Probably Salamanca conglomerate, Warren, Warren Co., Pennsylva- nia, USA. Collector: Beecher, C.E. Bradfordoceras hector variant beta Flower and Caster Hototyee YPM 13740B Flower, R.H. and Caster, K.E. 1935. Bull. Am. Paleont. v.22, n.75, p.242, pl.6, f.8.° ParatyPpE YPM 13740C Flower, R.H. and Caster, K.E. 1935. Bull. Am. Paleont. v.22, n.75, p.242, pl.6, f.5.° ParatyPpE YPM 13740D Flower, R.H. and Caster, K.E. 1935. Bull. Am. Paleont. v.22, n.75, p.242, pl.6, f.6. Late Devonian, Chemung Fm. Probably Salamanca conglomerate, Warren, Warren Co., Pennsylva- nia, USA. Collector: Beecher, C.E. “The explanations for figures 5 and 8 on plate 6 are reversed: f.8 is the holotype YPM 13740B, and f.5 is paratype YPM 13740C. Bradfordoceras sinuosum Flower an¢ Caster See Cyrtoceras ? hector Hall. Centrotarphyceras billingsi Foerste Hototyepe YPM 20488 Foerste, A.F. 1938. Geol. Soc. Am. Spec. Pap. 11, p.86, pl.16, f.6. 10 Type Catalog of Fossil Nautiloidea et al. =Curtoceras? billingsi. Ulrich, E.O., A.F. Foerste, A.K. Miller and W.M. Furnish. 1942. Geol. Soc. Am. Spec. Pap. 37, p.74, pl.29, f.3. Early Ordovician, Romaine Fm. Trilobite Bay, NW of St. George Island, Mingan Islands area, Gulf of St. Lawrence, Quebec, Canada. Collector: Twenhofel, W.H. Centrotarphyceras yellvillensis Ulrich, Foerste, Miller and Furnish HypotyPpE YPM 17152 Cullison, J.S. 1944. Bull. Tech. Ser. Mo. Univ. Sch. Min. Met. v.15, n.2, p.67, pl.32, f.20. HypotyepE YPM 17153 Cullison, J.S. 1944. Bull. Tech. Ser. Mo. Univ. Sch. Min. Met. v.15, n.2, p.67, pl.33, f.1. Early Ordovician, Powell Fm. Large porous, drusy, red residual chert boulders, “Black Ledge” 40-60 ft above base of Powell, NW corner of central rectangle at top of first high hill on W.P.A. road W of Tracey’s Ferry over North Fork of White River, Baxter Co., Arkansas, USA. Collector: Cullison, J.S. Charactoceras hercules (Billings) Hypotype YPM 26810 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.286."" Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.227, pl.11, f.3.° Late Ordovician, Vaureal Fm. West Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 33, Twenhofel Collection. Incorrectly cited as Characteroceras hercules. Coelogasteroceras canaliculatum (Cox) Hyrpotype YPM 6020 Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, 2S) Pla, fale: Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.124, pl.53, f.1,2. Early Pennsylvanian. Nolin Furnace, Edmonson Co., Kentucky, USA. Collector: Tiffney, B. Coloceras greenei Miller, Dunbar and Condra Hototype YPM 13982 Postilla 219 Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p:136, pl.7, f.8;9: Late Pennsylvanian, lola Limestone, Muncie Creek Shale Mbr. Shale below Avant Limestone, N end of mound in SW sec16T22NR12E, Oklahoma, USA. Collector: Greene, F.C. Coloceras liratum Girty Hypotype YPM 13980 Miller, A.K., C.O0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, pit32,plG; FS: Late Pennsylvanian, Cisco Grp, Graham Fm, Jacksboro Limestone Mbr. Middle of Jacksboro Limestone Mbr, mainly from lower 10 ft, 3.5 mi SE of Jacksboro RR station, Jack Co., Texas, USA. Collector: Schuchert, C., 1922. Coloceras obsoletum Girty HypotyPpE YPM 6378 Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p:134, pl.7, 1.4,5. HypotyPpE YPM 6378A Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.134. Middle Pennsylvanian, Marmaton Grp, Wewoka Fm. 3.5 mi NW of Allen, Pontotoc Co., Oklahoma, USA. Collector: Greger, D.K., 1919. HypotyrpeE YPM 13981 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.134, pl.7, f.6. Middle Pennsylvanian, Desmoinesian, Marmaton Grp, Wewoka Fm. NE of Copan, Washington Co., Oklahoma, USA. Collector: Greger, D.K. Curtoceras? billingsi (Foerste) See Centrotarphyceras billingsi Foerste. Cyclendoceras abundum Miller Hypotype YPM 5985 Miller, A.K. and W.M. Furnish. 1937. J. Paleont. v.11, n.7, p.542, pl.66, f.2. Late Ordovician, Whitewood Fm. Dolomite member of Whitewood, E side of Whitewood Canyon, 1.5 mi NE of Deadwood, Lawrence Co., South Dakota, USA. Postilla 219 Type Catalog of 11 Fossil Nautiloidea et al. Cyptendoceras magnus Cullison HototyepeE YPM 17155 Cullison, J.S. 1944. Bull. Tech. Ser. Mo. Univ. Sch. Min. Met. v.15, n.2, p.69, pl.33, f.10. ParaTyPE YPM 17156 Cullison, J.S. 1944. Bull. Tech. Ser. Mo. Univ. Sch. Min. Met. v.15, n.2, p.69, pl.33, f.12. Early Ordovician, Cotter Fm. Massive, gray granular dolomite, Jeffersonia jennii and Campbelloceras simplex zone of lower Cotter, road from MO State Hwy 25 down to Crystal City Glass Workers Country Club, SW sec 27T40NROGE, Jefferson Co., Missouri, USA. Collector: Cullison, J.S. Cyrtoceras ? hector Hall SyntyPpE YPM 6015 Hall, J. 1879. Paleont. N.Y. v.5, pt.2, p.364, pl.90, f.11. =Bradfordoceras hector. LEctotyPe. Flower, R.H. and Caster, K.E. 1935. Bull. Am. Paleont. v.22, n.75, p.240.° Syntype YPM 13740E Hall, J. 1879. Paleont. N.Y. v.5, pt.2, p.364, pl.90, f.12-15. =Bradfordoceras sinuosum. PARATYPE. Flower, R.H. and Caster, K.E. 1935. Bull. Am. Paleont. v.22, n.75, p.238, pl.6, f.7. Late Devonian, Chemung Fm. Warren, Warren Co., Pennsylvania, USA. Collector: Beecher, C.E. “Cited in Flower and Caster (1935) as “present whereabouts unknown,” but the specimen has since been located in the Yale collections. Cyrtoceras (?) sp. Hypotyee YPM 3879° Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.310." Late Ordovician, English Head Fm, English Head zone 4. English Head, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. “A thorough search of the collections by the curatorial staff in the 1960s and 1990s could not locate this specimen. It is believed to be permanently lost. *Cited as the “the type.” Cyrtorizoceras ellisense Foerste HoLtotype YPM 3852 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.304, pl.47, f.4. Late Ordovician, Ellis Bay Fm, Ellis Bay zone 7. Cliff between Bear Cliff and Cape Eagle, Anticosti Island, Quebec, Canada. Collector: Schuchert, C. and Twenhofel, W.H., 1908. Cyrtorizoceras cf. gasconsense Foerste Hyrpotyrpe YPM 12760 Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.224. Middle Silurian, Niagaran, West Point Fm, West Point Member |. At lighthouse, West Point, Quebec, Canada. Collector: Northrop, S.A., 1927. Cyrtorizoceras schucherti Foerste HototypE YPM 12748 Foerste, A.F. 1936a. Bull. Denison Univ. Sci Labs v-oinpon., Pliny tala, lB: Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.223. Middle Silurian. Anse-a-la-Barbe, Port Daniel, Quebec, Canada. Collector: Schuchert, C., 1905. Cyrtorizoceras sp. Hyrpotype YPM 12726 Northrop, S.A. 1939. Geol. Soc. Am. Spec. Papr2ik p:223) HypotyPpE YPM 12732 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab: v.31, p:5samplnay t:2: Northrop, S.A. 1939. Geol. Soc. Am. Spec. Rap. 21,)0.223- Middle Silurian, Niagaran, Bouleaux Fm. Shore W side of Pointe Bouleaux extending into Anse- aux-Gascons, Quebec, Canada. Collector: Northrop, S.A., 1927. Dawsonoceras cf. americanum (Fourd) HyrotyPpE YPM 26900 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.279.° Middle Silurian, Jupiter Fm, Jupiter zone 7. Cliff E of Iron River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. *Cited as Twenhofel Collection. 12 Type Catalog of Fossil Nautiloidea et al. Postilla 219 Dawsonoceras arisaigense McLearn HototyPpe YPM 272 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118:.p. 157, p21, £16. Late Silurian, Moydart Fm. Zone a of McLearn, along shore, at McDonald’s Brook, SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. PaRATYPE YPM 271 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.157, pl.21, f.15. Late Silurian, McAdam Fm. Zone c of McLearn, along shore, between the point at the E side of McDonald’s Cove and McAdam Brook, SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. “Incorrectly cited as YPM 465a. Incorrectly cited as YPM 465. Dawsonoceras elegantulum (Dawson) HypotyPE YPM 283 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.156, pl.24, f.2.° HypotyPpeE YPM 284 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.156, pl.24, f.3.° Early Devonian, Stonehouse Fm. Trilobite bed at top of section, zone c of McLearn, along shore, just NE of Stonehouse Brook, 2.4 mi SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. “Incorrectly cited as YPM 468. Incorrectly cited as YPM 468a. Diestoceras arenicolum Foerste HoLotyrpe YPM 3874 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.316, pl.55, f.1-3. Late Ordovician, Ellis Bay Fm, Ellis Bay zone 4. Cape James Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Diestoceras carletonense Foerste Hototyrpe YPM 3876 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.318, pl.54, f.4. Late Ordovician, Ellis Bay Fm, Ellis Bay zone 4. Carleton Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Diestoceras strangulatum Foerste Hototyre YPM 20500 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n1S4) potaplovete Late Ordovician, Vaureal Fm, Vaureal zone 1. Camp 0.5 mi W of campsite, De Puyjalon cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 50, Twenhofel Collection. Diestoceras vagum Foerste HoLtotyPpE YPM 3875 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.318, pl.54, f.3. Late Ordovician, English Head Fm, English Head zone 4. White Head, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Discosorus gunensis Foerste Syntype YPM 20484 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.301, pl.49, f.1.° SyntyPE YPM 20805 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.301, pl.46, f.3.” Middle Silurian, Gun River Fm, Gun River zone 3. Gun River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 44, Twenhofel Collection. ’Cited as No. 44a, Twenhofel Collection. Discosorus (?) infelix (Billings) Hyrpotyepe YPM 3850 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.302. Middle Silurian, Jupiter Fm, Jupiter zone 9. South- west Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. HypotyPpE YPM 26813 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.302.° Postilla 219 Middle Silurian, Jupiter Fm, Jupiter zone 9. Cliff E of Pavillon River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 45, Twenhofel Collection. Dolorthoceras ciscoense Miller, Dunbar and Condra HototyepeE YPM 13963A Miller, A.K., C.-O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p96. pla, fe2: ParatyPpE YPM 13963B Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, DIOGaplal. t3: Late Pennsylvanian, Cisco Grp. 8 mi N of Jim Ned Creek, N of Brownwood, Brown Co., Texas, USA. Collector: Greger, D.K. Dolorthoceras? dubium Miller, Dunbar and Condra HototyPpeE YPM 13962 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.95, pl.1, f.10,11. Late Pennsylvanian, Oread Limestone, Weeping Water Mbr. Plattsmouth Water Works at Plattsmouth, Plattsmouth Quad., W sec7T12NR14E, Cass Co., Nebraska, USA. Collector: Condra, G.E. and others. Domatoceras moorei Miller, Dunbar and Condra Hototyrpe YPM 14001 Miller, A.K., C.-0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, pizet. pleis tlee. Late Pennsylvanian, Dennis Fm, Winterset Limestone Mbr. Brick Plant Quarry, 1 mi S of Cherryvale, Liberty Quad., NW sec21T32SR17E, Montgomery Co., Kansas, USA. Collector: Condra, G.E. and others. ParatyPpE YPM 14002 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.221. Late Pennsylvanian. 1 mi E of Independence, Independence Quad., NE sec5T33SR1, Montgom- ery Co., Kansas, USA. Collector: Condra, G.E. and others. Type Catalog of 13 Fossil Nautiloidea et al. Domatoceras sp. HypotyPpE YPM 16276 Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.47, pl.45, f.8. Late Permian. Bed 17 of Difunta section, alternating shale and graywacke 60 m N35 E of La Difunta, NW of Las Delicias, Coahuila State, Mexico. Collector: King, R.E. Endoceras fulgar (Billings) HypotyPeE YPM 3801 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.257. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.224. Late Ordovician, English Head Fm, English Head zone 4. Raven West, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. HyrotyPpE YPM 3802 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.257. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.224. Ordovician, English Head Fm, English Head zone 4. Carleton Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. HyrotyPpE YPM 20802 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.257. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.224, pl.7, f.1, pl.11, £.4.° Late Ordovician, English Head Fm, English Head zone 4. North Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. HyrpotyrpeE YPM 26894 Foerste, A.F. 1928a. Mem. Can. Geol. Surv n.154, p.258.” Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.224. Late Ordovician, English Head Fm, English Head zone 4. Caplan River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. *Cited as No. 1, Twenhofel Collection. °Cited as No. 2, Twenhofel Collection. 14 Type Catalog of Fossil Nautiloidea et al. Postilla 219 Endoceras sp. Hyreotype YPM 3803 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.258. Late Ordovician, English Head Fm, English Head zone 2. English Head, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. HyrotyPpE YPM 26815 Foerste, A.F. 1938. Geol. Soc. Am. Spec. Pap. 11, p.91, pl.24, f.5. Middle Ordovician, Mingan Fm. Ammonite and Clearwater Points, E of Sea Cow Island, Mingan Islands area, Gulf of St. Lawrence, Quebec, Canada. Collector: Twenhofel, W.H. Endoceras velox (Billings) HypotypeE YPM 20517 Foerste, A.F. 1938. Geol. Soc. Am. Spec. Pap. 11, p.89, pl.22, f.3.° Middle Ordovician, Mingan Fm. Clearwater Point, E of Sea Cow Island, Mingan Islands area, Gulf of St. Lawrence, Quebec, Canada. Collector: Twenhofel, W.H. HypotypE YPM 35901 Foerste, A.F. 1938. Geol. Soc. Am. Spec. Pap. 11, p.89. Ordovician. Quin Island, Mingan Islands area, Gulf of St. Lawrence, Quebec, Canada. Collector: Twenhofel, W.H. HyrotyPpE YPM 35902 Foerste, A.F. 1938. Geol. Soc. Am. Spec. Pap. 11, p.89. Middle Ordovician, Mingan Fm. Clearwater Point, E of Sea Cow Island, Mingan Islands area, Gulf of St. Lawrence, Quebec, Canada. Collector: Twenhofel, W.H. *Cited as Twenhofel collection. Endolobus schucherti Miller HototyPpeE YPM 13079 Miller, A.K. 1932a. J. Paleont. v.6, n.1, p.64, plhi2. f-12, 13: Paratype YPM 14127-14129 Miller, A.K. 1932a. J. Paleont. v.6, n.1, p.64. Early Permian, Bursum Fm. Clay pits, 1.25 mi E of Tularosa on US Hwy 70, CENTER SW sec21T14SR10E, Otero Co., New Mexico, USA. Collector: Baker, C.L. and Drake, N.F. Eotrimeroceras jupiterense Foerste HototyeeE YPM 3877 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.320, pl.53, f.4,5.° HyrotyepeE YPM 3500 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n-154;\p-320) pli53. 23: Hyrpotyrpe YPM 3936 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. Nn. 1154;p:520) pl-53, 1-6. HyrotyPpE YPM 3937, 3938 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.320. Middle Silurian, Jupiter Fm, Jupiter zone 4. 2 mi E of Jupiter River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. “Cited as YPM 3877a. Ephippioceras ferratum (Cox) HypotyPpeE YPM 13978 Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, Dil 4 pls tliat 7. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.50. Pennsylvanian. Kansas City, Jackson Co., Missouri, USA. Collector: Beecher, C.E. Euloxoceras greenei Miller, Dunbar and Condra HototyrpeE YPM 13964A Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.99, pl.1, f.12,13. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.24. Late Pennsylvanian, Kansas City Grp. Shale above sandstone above Checkerboard(?) Limestone (basal Kansas City), NW sec29T13NR10E, Oklahoma, USA. Collector: Greene, F.C. Postilla 219 Paratype YPM 13964° Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.99. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.24. Late Pennsylvanian, Kansas City Grp. Shale above sandstone above Checkerboard(?) Limestone (basal Kansas City), NW sec29T13NR10E, Oklahoma, USA. Collector: Greene, F.C. Paratype YPM 13964B° Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.99, pl.1, f.14. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.24. ParatyPpE YPM 13965 Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.99. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.24. Pennsylvanian, Cisco Grp. 3 mi S and 0.5 mi E of Jacksboro, Jack Co., Texas, USA. Collector: Greger, D.K., 1919. ParaTyPE YPM 13965A Miller, A.K., C.O0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, 9-99) pl. 1, £15. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.24. Pennsylvanian, Cisco Grp. 3 miS and0.5 mi E of Jacksboro, Jack Co., Texas, USA. Collector: Greger, D.K., 1919. Paratype YPM 13966° Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.99. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.24. Middle Pennsylvanian, Marmaton Grp, Labette Shale. Zone R[ed], 2-4 ft below top of Labette, exposed along headwater branches of Feefee Creek, 0.6 mi W of Lackland Station, C.R.1. & P. Railroad, and 1 mi NW of Stratman, St. Louis Co., Missouri, USA. Collector: Knight, J.B. ParatyPpE YPM 13967 Type Catalog of 15 Fossil Nautiloidea et al. Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.99. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.24. Late Pennsylvanian, Cisco Grp, Graham Fm, Jacksboro Limestone Mbr. 130 ft above Canyon Limestone, 10.5 mi SE of Graham on N Mineral Wells Tpk, Young Co., Texas, USA. Collector: Schuchert, C. and Bean, W.B., 1922. ParaTyPE YPM 13968 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.99. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.24. Middle Pennsylvanian, Marmaton Grp, Wewoka Fm. 3.5 mi NW of Allen, Pontotoc Co., Oklahoma, USA. Collector: Greger, D.K., 1919. ParatyPpE YPM 13969 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.99. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.24. Pennsylvanian, Bend Grp. Lower Bend shale, 2.5 or 3 mi SE of Bend on narrow-gauge RR to Lampasas, San Saba Co., Texas, USA. Collector: Schuchert, C., 1919. Paratype YPM 13970° Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.99. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.24. Francis Fm. Brick plant S of Ada, Pontotoc Co., Oklahoma, USA. Paratype YPM 13971° Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.99. Unklesbay, A.G. 1962. Bull. Okla. Geo! Surv. n.96, p.24. Late Pennsylvanian, Cisco Grp, Graham Fm Jacksboro Limestone Mbr. Middle of Jacksboro Limestone Mbr, mainly from lower 10 fi, 3.5 mi SE of Jacksboro RR station, Jack Co., Texas, USA. Collector: Schuchert, C., 1922. Paratype YPM 13972° 16 Type Catalog of Fossil Nautiloidea et al. Postilla 219 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.99. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.24. Late Pennsylvanian, Cisco Grp. 8 mi N of Jim Ned Creek, N of Brownwood, Brown Co., Texas, USA. Collector: Greger, D.K. Paratype YPM 13973° Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.99. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.24. No locality information is available for this specimen. Paratype YPM 13974! Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.99. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.24. Late Pennsylvanian, Canyon Grp, Caddo Creek Fm, Home Creek Limestone Mbr. Near top of Canyon, bank W of Sinclair well and about 0.5 mi SW of the Partridge well, Brown Co., Texas, USA. Collector: Galpin, S.L. “This is a lot of six specimens. "This is represented by one thin section and remnant fragments. “This is a lot of four specimens. “This is a lot of 10 specimens. “A thorough search of the collections by the curatorial staff in the 1960s and 1990s could not locate this specimen. It is believed to be permanently lost. This is a lot of 24 specimens. Eurystomites ferox (Billings) See Eurystomites (?) ferox (Billings). Eurystomites (?) ferox (Billings) Hypotype YPM 26814 Foerste, A.F. 1938. Geol. Soc. Am. Spec. Pap. 11, p.85.* =Eurystomites ferox. Ulrich, E.O., A.F. Foerste, A.K. Miller and W.M. Furnish. 1942. Geol. Soc. Am. Spec. Pap. 37, 0.62." Early Ordovician, Romaine Fm. Eskimo Island, Mingan Islands, Gulf of St. Lawrence, Quebec, Canada. Collector: Twenhofel, W.H. “Cited as Twenhofel Collection. Cited as private collection of W.H. Twenhofel. Eutrephoceras dekayi Morton HypotyPE YPM 30394 Landman, N.H. 1982. Discovery, v.16, n.1, pil2 tte: Mapes, R.H. and T.S. Evans. 1995. J. Paleont. v.69, n.4, p.785, tf.1.1-2. Late Cretaceous, Fox Hills Fm, Trail City Mbr. Protocardia-Oxytoma assemblage zone, Dewey Co., South Dakota, USA. Collector: Ross, H. Eutrephoceras sp. HypotyPpeE YPM 6405 Reeside, J.B., Jr. 1927. U.S. Geol. Surv. Prof. Pap. n.150-A, p.2, pl.1, f.1-4. Late Cretaceous, Frontier Fm, Torchlight Sandstone Mbr. 800 ft above Torchlight, Oregon Basin, secO6T51NR100W, Park Co., Wyoming, USA. Collector: Binney, E., Jr., 1925. Gasconsoceras cascapediense Foerste HototypeE YPM 12723 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.66, pl.12, f.2. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap..21, p:225. HypotyPpE YPM 12722, 30877 Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.225.° Middle Silurian, Niagaran, Gascons Fm. Black Capes, near Little Cascapedia River, Quebec, Canada. Collector: Schuchert, C., 8/1927. “YPM 30877 cited as YPM 12723 (“same catalogue number as the holotype’). Gasconsoceras obesum Foerste HoLtotyPpE YPM 12745 Foerste, A.F. 1936a. Bull. Denison Univ. Sci Labsw.3i) p63) plz yialasibe Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 2 p:2eor Postilla 219 Middle Silurian. Anse-a-la-Barbe, Port Daniel, Quebec, Canada. Collector: Schuchert, C., 1905. Gasconsoceras cf. obesum Foerste HypotyPpE YPM 12729 Foerste, A.F. 1936a. Bull. Denison Univ. Sci; Lab: v.31; p:65; 1-15, f:2. Northrop, S.A. 1939. Geol. Soc. Am. Spec. ap? 2anp.225: Middle Silurian, Niagaran, Bouleaux Fm. Shore W side of Pointe Bouleaux extending into Anse- aux-Gascons, Quebec, Canada. Collector: Northrop, S.A., 1927. Gasconsoceras planiventrum Foerste Hyrotyrpe YPM 12750 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.62, pl.13, f1a,1b.° =Gasconsoceras cf. planiventrum. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Papne ty p:225: Middle Silurian. Anse-a-la-Barbe, Port Daniel, Quebec, Canada. Collector: Schuchert, C., 1905: “Cited as Gasconsoceras cf. planiventrum in the explanation for pl.13, f.1. Gasconsoceras pulchellum Foerste Hototyrpe YPM 13099 Foerste, A.F. 1936a. Bull. Denison Univ. sci) Lab. vit, p.61, pl.13, f.2. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.224. Middle Silurian, Niagaran, Gascons Fm. Shore, W of mouth of Anse-a-la-Barbe River, Quebec, Canada. Collector: Northrop, S.A., 1927. Geisonoceras ellisense Foerste HototyepeE YPM 3813 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.263,. pl.29, f.1. Late Ordovician, Ellis Bay Fm. W side of Ellis Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Geisonoceras sp. HyrpotypE YPM 12769 Foerste, A.F. 1936a. Bull. Denison Univ. sci: Lab: v:31, p:34, pk 10; £2. Type Catalog of 17 Fossil Nautiloidea et al. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pape 21, p:2t9: Middle Silurian, Niagaran, Indian Point Fm. Eastern portion (higher in section), shore at Indian Point, Quebec, Canada. Collector: Northrop, S.A., 1927. Geisonoceras (?) sp. HypotyPpE YPM 12746 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.34, pl. 10, £5. =Geisonoceras? sp. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.219. Middle Silurian. Anse-a-la-Barbe, Port Daniel, Quebec, Canada. Collector: Schuchert, C., 1905. Geisonoceras? sp. HypotypE YPM 12735 Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.219. Middle Silurian, Niagaran, Bouleaux Fm. Shore W side of Pointe Bouleaux extending into Anse- aux-Gascons, Quebec, Canada. Collector: Northrop, S.A., 1927. See also Geisonoceras(?) sp. Geisonocerina barbensis Foerste Syntype YPM 12751A Foerste, A.F. 1936a. Bull. Denison Univ. Scii Fabaveate p32) pll4ef.2— Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.219. Middle Silurian. Anse-a-la-Barbe, Port Daniel, Quebec, Canada. Collector: Schuchert, C., 1905. HypotypE YPM 12715 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.32, pl.5, £.3.° Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.219. Middle Silurian. Anse-a-la-Barbe, Port Dan: Quebec, Canada. Collector: Schuchert, C., 190! HyrotypE YPM 12719 Foerste, A.F. 1936a. Bull. Denison Univ. Sel: Lab: v.34, p:32- Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.219. 18 Type Catalog of Fossil Nautiloidea et al. Postilla 219 Middle Silurian, Niagaran, Gascons Fm. Stream drift in Anse-a-la-Barbe River, boundary between Range I-E and Range Ill, Quebec, Canada. Collector: Northrop, S.A., 1927. HypotyPpE YPM 12724 Foerste, A.F. 1936a. Bull. Denison Univ. Sel Lab: visi poe: Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.219. Middle Silurian, Niagaran, Gascons Fm. Black Capes, near Little Cascapedia River, Quebec, Canada. Collector: Schuchert, C., 8/1927. HypotyPpE YPM 12747 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.32. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.219. Middle Silurian. Anse-a-la-Barbe, Port Daniel, Quebec, Canada. Collector: Schuchert, C., 1905. “Cited as YPM 12751. YPM 12751 originally consisted of two specimens: one the figured syntype, and another that may be part of the same individual. Cited as Geisonocerina (?) barbensis in the explanation for pl.5, f.3. Geisonocerina (?) danielensis Foerste HototyPpE YPM 12775 Foerste, A.F. 1936a. Bull. Denison Univ. Sci Vab) V.3il; ps2, pid, toll. Middle Ordovician, Mictaw Grp. Cote d’Ardoise, Middle Branch, Port Daniel River, middle of Range Vil, Quebec, Canada. Collector: Northrop, S.A., 1927. Gomphoceras impar Hall Cast of Hyrotype YPM 60437 Hall, J. 1879. Paleont. N.Y. v.5, pt.2, p.332. Hall, J. 1886. N.Y. St. Geol. 5th Ann. Rept. 1885, pl.121A, f.1. Hall, J. 1888. Paleont. N.Y. v.5, pt.2 suppl., p.32, pl.121A, f.1. Middle Devonian, Onondaga Limestone. Comiferous limestone, Columbus. Franklin Co., Ohio, USA. “Location of actual specimen is unknown. Gomphoceras lunatum Hall HoLotyrpe YPM 6037 Hall, J. 1879. Paleont. N.Y. v.5, pt.2, p.341, pl.95, f.10-13. Grabau, A.W. 1899. Bull. Buffalo Soc. Nat. Sci. v.6, p.292. Middle Devonian, Hamilton Grp. Hamburg, Erie Co., New York, USA. Gomphoceras mitra Hall Cast of Hototype YPM 60757 Hall, J. 1879. Paleont. N.Y. v.5, pt.2, p.330. Hall, J. 1886. N.Y. St. Geol. 5th Ann. Rept. 1885, pl.3. Hall, J. 1888. Paleont. N.Y. v.5, pt.2 suppl., p.32, pl.119. Devonian. Corniferous limestone, Lexington. Scott Co., Indiana, USA. “Location of actual specimen is unknown. Goniotrochoceras twenhofeli Foerste HoLtotyPpE YPM 20499 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.285, pl.38, f.1,2.° Late Ordovician, Vaureal Fm, Vaureal zone 1. Girard Harbor, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 32, Twenhofel Collection. Hexameroceras schucherti Foerste HototypE YPM 12752 Foerste, A.F. 1936a. Bull. Denison Univ. Sci Eabs v.31; p87, pll9h it talib: Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.228. Middle Silurian. Anse-a-la-Barbe, Port Daniel, Quebec, Canada. Collector: Schuchert, C., 1905. Hexameroceras (?) occlusum Foerste Hototype YPM 12749 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.88, pl.20, f.2a,2b. =Hexameroceras? occlusum. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.228. Middle Silurian. Anse-a-la-Barbe, Port Daniel, Quebec, Canada. Collector: Schuchert, C., 1905. Postilla 219 Huronia chicottense Foerste HoLotyrpE YPM 20476 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.300, pl.48, f.2.° Early Silurian, Chicotte Fm, Chicotte zone 2. Southwest Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. *Cited as No. 42, Twenhofel Collection. Huronia obliqua Stokes HypotypE YPM 3942° Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.300.° Silurian, Jupiter Fm, Jupiter zone 5. Cormorant Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. HypotypeE YPM 3943 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.300. Early Silurian, Chicotte Fm, Chicotte zone 1. Jumpers, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. 1s thorough search of the collections by the curatorial staff in the 1960s and 1990s could not locate this specimen. It is believed to be permanently lost. Cited as No. 23, Twenhofel Collection. Huroniella sp. HyrotyPpeE YPM 3849 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.299. Middle Silurian, Gun River Fm, Gun River zone 1. Hannah Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Hyperoceras twenhofeli Foerste HototyPpE YPM 3872 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. het'54, p35, plib4, f.1,2: Ordovician, English Head Fm, English Head zone 4. Carleton Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Kionoceras angulatum (Wahlenberg) HypotyPpe YPM 285 Type Catalog of 19 Fossil Nautiloidea et al. McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.157, pl.24, f.7, pl.28, f.15.° Early Devonian, Stonehouse Fm. Zone b of McLearn, along shore, between Stonehouse Brook, and McPherson’s Brook, SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. “Incorrectly cited as YPM 469. Kionoceras angulatum var. deflectostriatum McLearn HototyPpE YPM 287 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.158, pl.25, f.4, pl.29, f.6.° Early Devonian, Stonehouse Fm. Zone b of McLearn, along shore, between Stonehouse Brook, and McPherson’s Brook, SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. “Incorrectly cited as YPM 469b. Kionoceras bellatulum (Billings) Hypotype YPM 3940° Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.269." Middle Silurian, Gun River Fm, Gun River zone 4. Cape MacGilvray, Quebec, Canada. Collector: Twenhofel, W.H. HyrotyPpE YPM 26941 Shrock, R.R. and W.H. Twenhofel. 1939. J. Paleont. v.13, n.3, p.263, pl.29, f.13. Early Silurian, Pike Arm Fm. Fossiliferous black argillite, Burnt Island in Goldson Arm near New World Island, Newfoundland, Canada. Collector: Twenhofel, W.H., 1936. “A thorough search of the collections by the curatorial staff in the 1960s and 1990s could not locate this specimen. It is believed to be permanently lost. Cited as No. 18, Twenhofel Collection. Kionoceras bellense Foerste HototyPpE YPM 3822 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.269, pl.30, f.1,2. Silurian, Jupiter Fm. W cliff, mouth of Iron River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. 20 Type Catalog of Fossil Nautiloidea et al. Kionoceras bouleauxense Foerste SyntyPpE YPM 12731 Foerste, A.F. 1936a. Bull. Denison Univ. Sci Fab: V.oi. Poo- pl 71-5. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Papee li pile: SyntyPpE YPM 12733 Foerste, A.F. 1936a. Bull. Denison Univ. Sci Lab: v.31, pido, pl-7, 1-4. Northrop, S.A. 1939. Geol. Soc. Am. Spec. PapaZip zo: Middle Silurian, Niagaran, Bouleaux Fm. Shore W side of Pointe Bouleaux extending into Anse- aux-Gascons, Quebec, Canada. Collector: Northrop, S.A., 1927. Kionoceras latouri McLearn Hototyre YPM 286 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.158, pl.25, f.2, pl.29, f.9.° Early Devonian, Stonehouse Fm. Trilobite bed at top of section, zone c of McLearn, along shore, just NE of Stonehouse Brook, 2.4 mi SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. “Incorrectly cited as YPM 469a. Kionoceras cf. scammoni (McChesney) Hypotyrpe YPM 3941° Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.268.” Early Silurian, Becscie Fm. Wreck Beach, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “A thorough search of the collections by the curatorial staff in the 1960s and 1990s could not locate this specimen. It is believed to be permanently lost. Cited as No. 23, Twenhofel Collection. Kionoceras sp. HyrpotypE YPM 12728 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Labs vail), 0.36; plav, 1:6: =Kionoceras sp. A. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.220. Postilla 219 Middle Silurian, Niagaran, Bouleaux Fm. Shore W side of Pointe Bouleaux extending into Anse- aux-Gascons, Quebec, Canada. Collector: Northrop, S.A., 1927. Kionoceras sp. A See Kionoceras sp. Kionoceras sp. B HypotypE YPM 12702 Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.220. Middle Silurian, Niagaran, Clemville Fm. In road gutter near old limekiln, uphill and S of Bridge, Clemville, Quebec, Canada. Collector: Northrop, S.A., 1927. Leurontoceras anticostiensis Foerste Hototyre YPM 3838 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.283, pl.41, f.6,7.° Ordovician, English Head Fm. English Head, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. “Incorrectly cited as YPM 3858. Liroceras? sp. HypotypE YPM 16274 Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.123, pl.45, f.7. Late Permian. Probably bed 15 of Difunta section, conglomeratic buff limestone capping Cerro Agujito, NW of Las Delicias, Coahuila State, Mexico. Collector: King, R.E. Mandaloceras erectum Foerste HototyrpE YPM 12743 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.83, pl.20, f.1a,1b. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pape), p22, Middle Silurian. Anse-a-la-Barbe, Port Daniel, Quebec, Canada. Collector: Schuchert, C., 1905. Megadiscosorus crassisegmentatus brevior? Foerste HypotypE YPM 3944° Foerste, A.F. 1925. Mem. Can. Geol. Surv. n.145, p.91.° Postilla 219 Silurian, Jupiter Fm, Jupiter zone 8. Jupiter River Cliff, Quebec, Canada. Collector: Twenhofel, W.H., 1909. “A thorough search of the collections by the curatorial staff in the 1960s and 1990s could not locate this specimen. It is believed to be permanently lost. incorrectly cited as YPM 3063-125. Megadiscosorus crassisegmentatus orientalis Foerste HototyPpE YPM 3851 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.303, pl.49, f.2,3. Silurian, Jupiter Fm, Jupiter zone 10. Jumpers, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Megaglossoceras rectilaterale Miller, Dunbar and Condra HototyrpE YPM 13979 Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.125, pl.5, f.1-3. Late Pennsylvanian, Plattsburg Limestone. National stone Quarry, Louisville, Cass Co., Nebraska, USA. Metacoceras inconspicuum Hyatt Hypotyrpe YPM 13993 Miller, A.K., C.-O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.181. Late Pennsylvanian, Lane Shale. 7 ft oolitic bed, quarry of the Kansas Cement Co., 1 mi E of Bonner Springs, NW sec28T11SR23E, Wyandotte Co., Kansas, USA. Collector: Condra, G.E. and others. Metacoceras nodosum Miller, Dunbar and Condra HototyPpeE YPM 13994 Miller, A.K., C.O0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.186, pl.15, f.5-7. Pennsylvanian. Kansas City, Missouri, USA. Metacoceras sangamonense (Meek and Worthen) Hyrotyepe YPM 13990 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, pai; pl 15; 8:9: Type Catalog of 1 Fossil Nautiloidea et al. Middle Pennsylvanian, Mcleansboro Fm. Sangamon Co., Illinois, USA. Collector: Braun, F.A. Metacoceras sp. HypotyPpE YPM 25800 Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.115, pl.42, f.11,12. Late Pennsylvanian, Fort Riley Limestone. Quarry at Beatrice power dam, Baneston, Gage Co., Nebraska, USA. Metacoceras sublaeve Miller, Dunbar and Condra HototyrpE YPM 13995 Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.190, pl.7, f.1-3. =Stearoceras sublaeve. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.64, tf.19, pl.57, f.3,4. ParatyPpE YPM 13996A—D Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.190. =Stearoceras sublaeve. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.64. Early Cretaceous, Grenola Limestone, Neva Mbr. Old quarry along creek, S of road, 1.25 mi NE of Roca, E sec8T8NR7E, SW sec9T8NR7E, Lancaster Co., Nebraska, USA. Collector: Condra, G.E. and others. Mooreoceras bakeri Miller, Dunbar and Condra Hototyrpe YPM 13959 Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.92, pl.2, f.11-12. Late Pennsylvanian, Burlingame Limestone. Sec17T17SR13 E, Lyon Co., Kansas, USA. Collector: Baker, R.F. ParatyPpE YPM 13960 Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.92. Late Pennsylvanian, Plattsburg Limestone. Zone A, Murphy Quarry, Louisville, Cedar Creek Quad., SW sec7T12NR12E, Cass Co., Nebraska, USA. Collector: Condra, G.E. and others. Paratype YPM 13961 22 Type Catalog of Fossil Nautiloidea et al. Postilla 219 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.92. Late Pennsylvanian, Oread Limestone, Weeping Water Mbr. Snyderville Quarry, Snyderville, Avoca Quad., SE sec10T10NR12E, Cass Co., Nebraska, USA. Collector: Condra, G.E. and others. Mooreoceras normale var. angusticameratum Miller, Dunbar and Condra HototypeE YPM 13957 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.89, pl.2, f.8-10. Kendrick shales, Cow Creek, Floyd Co., Kentucky, USA. Collector: Jillson, W.R., 4/6/1919. Mooreoceras normale Miller, Dunbar and Condra HototypeE YPM 13956 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, DIG?, pla, 1.0-7: Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.23, pl.4, f.1-4. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.25. Pennsylvanian. Kansas City, Jackson Co., Missouri, USA. Collector: Beecher, C.E. Mooreoceras tuba (Girty) HypotypeE YPM 13958 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.90, pl.2, f.4. Late Pennsylvanian, Dennis Fm, Winterset Limestone Mbr. Top of the Winterset NW_ 1/4 of Section 33 NE of Cedar Creek, Cedar Creek Quad., NW sec33T13NR12E, Cass Co., Nebraska, USA. Collector: Condra, G.E. and others. Moreauoceras milleri Cullison Hototyrpe YPM 17129 Cullison, J.S. 1944. Bull. Tech. Ser. Mo. Univ. Sch. Min. Met. v.15, n.2, p.68, pl.32, f.13-16. Miller, A.K. and J.S. Cullison. 1946. J. Paleont. v.20, n.2, p.160, pl.27, f.1-4. Early Ordovician, Jefferson City Grp, Rich Fountain Fm. Residual chert, Jeffersonia trilobite zone, base of hill on N side of Moreau River and on E side of US Hwy 63, SW SW sec27T44NR11W, Cole Co., Missouri, USA. Collector: Cullison, J.S. Nautilus (Discites) ammonis Hall HototypE YPM 6065 Hall, J. 1879. Paleont. N.Y. v.5, pt.2, p.425. Hall, J. 1886. N.Y. St. Geol. 5th Ann. Rept. 1885, pl.10. Hall, J. 1888. Paleont. N.Y. v.5, pt.2 suppl., p.38, pl.125. Early Devonian, Helderberg Grp. Heldebergian limestone, in glacial drift, Ann Arbor, Washtenaw Co., Michigan, USA. Nautilus magister Hall HyrpotyPpE YPM 6260 Grabau, A.W. 1899. Bull. Buffalo Soc. Nat. Sci. v.6, p.292, pl.28. Middle Devonian, Hamilton Grp. Soft shales, Eighteen Mile Creek, Hamburg, Erie Co., New York, USA. Collector: Grabau, A.W. Oncoceras carletonense Foerste HoLtotyPpE YPM 3864 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.309, pl.50, f.5. Late Ordovician, Ellis Bay Fm, Ellis Bay zone 4. Cape James Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Oncoceras (?) curvicameratum Foerste HototypE YPM 3865 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.310. Late Ordovician, Ellis Bay Fm. Cape James, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Ormoceras prinstaense Foerste HototyrpE YPM 3881 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.292, pl.42, f.4, pl.43, {f3.4e Late Ordovician, Ellis Bay Fm, Ellis Bay zone 8. Ellis Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. “Incorrectly cited as YPM 3847. Postilla 219 Ormoceras sp. HypotyPE YPM 12753 Foerste, A.F. 1936a. Bull. Denison Univ. sci, Lab: v:31, p73, pl.17, f.3a,3b. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p:226. Middle Silurian, Niagaran, West Point Fm, West Point Member IV. Shore, W of lighthouse [W of Peabody Locality BO949] between West Point and Indian Point, Quebec, Canada. Collector: Northrop, S.A., 1927. HyrotyPpeE YPM 26811 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.293.* Middle Silurian, Jupiter Fm. Sand cliff, 3 mi up Jupiter River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. *Cited as No. 36, Twenhofel Collection. Orthoceras (?) antenor Billings HypotyPpeE YPM 26845 Foerste, A.F. 1938. Geol. Soc. Am. Spec. Pap. 11, p.92, pl.20, f.2,3.° Middle Ordovician, Mingan Fm. Clearwater Point, E of Sea Cow Island, Mingan Islands area, Gulf of St. Lawrence, Quebec, Canada. Collector: Twenhofel, W.H. *Cited as Twenhofel Collection. Orthoceras anguliferum d’Archiac and de Verneuil HypotyPpE YPM 2750 Marsh, O.C. 1869. Proc. Am. Assoc. Adv. Sci., 1868, p.326. Ruedemann, R. 1921. Bull. N.Y. St. Mus. n.227-228, p.79. Foerste, A.F. 1930. Contrib. Mus. Paleont. Univ. Mich. v.3, n.6, p.133. Devonian. Paffrath, Germany. Collector: Marsh, O.C., 1865. Hypotyrpe YPM 4129 Foerste, A.F. 1930. Contrib. Mus. Paleont. Univ. Mich. v.3, n.6, p.134, pl.3, f.2. Hyrotype YPM 4131 Type Catalog of 23 Fossil Nautiloidea et al. Foerste, A.F. 1930. Contrib. Mus. Paleont. Univ. Mich. v.3, n.6, p.134. Middle Devonian, Stringocephalus Limestone. Zone of Uncites paulinae, Teufelsfuhrloch, near Hebborn, Germany. Collector: Winterfeld, F. HypotyPpe YPM 4132 Dunbar, C.O. 1924. Yale Univ. Press: New Haven (Conn.), ch.6, p.193, tf.17. Berry, E.W. 1928. Quart. Rev. Bio. v.3, n.1, p.97, pl.4, f.4. Foerste, A.F. 1930. Contrib. Mus. Paleont. UnivaiMich! V.37niG, pals; plik tales: tat. Middle Devonian, Stringocephalus Limestone. Zone of Uncites paulinae, Underthal quarry, above the Sehladethal, near Paffrath, Germany. Collector: Wiriterfeld, F. Orthoceras antigonishense McLearn ParatyPpE YPM 278 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.152, pl.22, f.7.° Early Devonian, Stonehouse Fm. Zone c of McLearn, along shore, just NE of Stonehouse Brook, 2.4 mi SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. ParatyPpE YPM 279 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.152, pl.22, £.8.° Early Devonian, Stonehouse Fm. Trilobite bed at top of section, zone c of McLearn, along shore, just NE of Stonehouse Brook, 2.4 mi SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. “Incorrectly cited as YPM 467b. "Incorrectly cited as YPM 467c. Orthoceras bipartitum Hall SyntyPpE YPM 6017 Hall, J. 1879. Paleont. N.Y. v.5, pt.2, p.313, pl.113, f.20: SyntyPpE YPM 6238 Hall, J. 1879. Paleont. N.Y. v.5, pt.2, p.313, pled teen: Late Devonian, Chemung Fm. Warren, Warren Co., Pennsylvania, USA. Collector: Beecher, C.E. 24 Type Catalog of Fossil Nautiloidea et al. Postilla 219 Orthoceras bullatum var. pictoense (Dawson) HypotyrpeE YPM 281 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.155, pl.23, f.1,4,5.° Late Silurian, Moydart Fm. Zone a of McLearn, along shore, between McDonald’s Brook and the point at the E side of McDonald’s Cove, SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. “Incorrectly cited as YPM 467e. Orthoceras chicottense Foerste HototyrpeE YPM 3811 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.262, pl.27, f.3. Middle Silurian, Chicotte Fm, Chicotte zone 1. Southwest Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Orthoceras chinense Foord HypotypeE YPM 6273° Kobayashi, T. 1934. J. Tokyo Imp. Univ. Fac: SC, See:2,. V3, 0.401) pl.32, fi7. Middle Ordovician. Near Ichang, Hubei Province, China. “A thorough search of the collections by the curatorial staff in the 1960s and 1990s could not locate this specimen. It is believed to be permanently lost. Orthoceras clemvillense Foerste Hototyepe YPM 12704 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.29, pl.17, f.1a,1b. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.218. Middle Silurian, Niagaran, Clemville Fm. Camarotoechia fringilla zone, Little Port Daniel River, about 0.25 mi up stream from bridge, outskirts of Clemville, Quebec, Canada. Collector: Schuchert, C., 8/1923. ParatyPpE YPM 12705 Foerste, A.F. 1936a. Bull. Denison Univ. Sei}Lab2v:3il0730) plate: Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap: 21, p:218. Middle Silurian, Niagaran, Clemville Fm. Hyattidina zone, above Camarotoechia zone, Little Port Daniel River, about 0.25 mi up stream from bridge, outskirts of Clemville, Quebec, Canada. Collector: Schuchert, C., 8/1923. Orthoceras cochleatum Hall HoLtotyPpE YPM 6009 Hall, J. 1879. Paleont. N.Y. v.5, pt.2, p.308, pl.113) £119: Late Devonian, Chemung Fm. Warren, Warren Co., Pennsylvania, USA. Collector: Beecher, C.E. Orthoceras confertiseptatum McLearn HototyrpeE YPM 282 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.154, pl.23, £.2,3.° Late Silurian, Moydart Fm. Zone a of McLearn, along shore, between the point at the E side of McDonald’s Cove and McAdam Brook, SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. HypotyPpE YPM 26840 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.154. Early Devonian, Stonehouse Fm. Trilobite bed at top of section, zone c of McLearn, along shore, just NE of Stonehouse Brook, 2.4 mi SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. HypotyPpE YPM 26841 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.154. Early Devonian, Stonehouse Fm. Composite of original localities 28-37, zone b of McLearn, along shore, between Stonehouse Brook, and McPherson’s Brook, SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. “Incorrectly cited as YPM 467f. Orthoceras desideratum (Billings) HypotyepE YPM 26896 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.261. Foerste, A.F. 1928b. Proc. Trans. Royal Soc. Can. ser.3, v.22, n.4, p.226, pl.11, f.2.° Postilla 219 Type Catalog of 25 Fossil Nautiloidea et al. Late Ordovician, Ellis Bay Fm, Ellis Bay zone 4. Cliff 0.375 mi E of Junction Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. *Cited as No. 11, Twenhofel Collection. Orthoceras dunbari Foerste See Orthoceras sp. Orthoceras eriense Hall. See Orthoceras robustum Hall. Orthoceras ferecylindricum Foerste SyntyPpE YPM 3812 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.262. Syntype YPM 3869 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.262, pl.27, f.4,5. Middle Silurian, Chicotte Fm, Chicotte zone 8. Bell River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Orthoceras leander Hall HototyPpE YPM 6030 Hall, J. 1879. Paleont. N.Y. v.5, pt.2, p.309, pl.90, f.8. Late Devonian, Chemung Fm. Warren, Warren Co., Pennsylvania, USA. Collector: Beecher, C.E. Orthoceras longissimicameratum Miller SyntyPE YPM 12928A Miller, A.K. 1930. J. Paleont. v.4, n.4, p.388, Bless; ft. SyntyPpE YPM 12928B Miller, A.K. 1930. J. Paleont. v.4, n.4, p.388, pl.38, f.2. SyntyPE YPM 12928C-12928G Miller, A.K. 1930. J. Paleont. v.4, n.4, p.388. Late Pennsylvanian, Gaptank Fm. Upper Gaptank, 4.5 miS, 15 E of Lenox, Brewster Co., Texas, USA. Collector: King, P.B., King, R.E. and Baker, C.L. Orthoceras ludense var. camerini McLearn ParatyPpE YPM 276 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.152, pl.22, f.1,2.° ParatyPE YPM 277 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.152, pl.22, f.3,4.” Late Silurian, Moydart Fm. Zone a of McLearn, along shore, between McDonald’s Brook and the point at the E side of McDonald’s Cove, SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. “Incorrectly cited as YPM 467. "Incorrectly cited as YPM 467a. Orthoceras mcadamense McLearn HototyPE YPM 273 McLearn, F.H. 1924. Mem. Geol. Surv. Can. ne48, 1p. 152, pl21, f.17,18. Late Silurian, McAdam Fm. Zone c of McLearn, along shore, between the point at the E side of McDonald’s Cove and McAdam Brook, SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. “Incorrectly cited as YPM 465b. Orthoceras punctostriatum Hall HypotyPpE YPM 280 McLearn, F.H. 1924. Mem. Geol. Surv. Can. Nid 16, Psl5o, pl:22, 129) pl29: fete Early Devonian, Stonehouse Fm. Composite of original localities 20-40, zone b of McLearn, along shore, between Stonehouse Brook, and McPherson’s Brook, SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. “Incorrectly cited as YPM 467d. Orthoceras robustum Hall HototyrpeE YPM 6054 Hall, J. 1876. Illustrations of Devonian fossils: gasteropoda, pteropoda, cephalopoda, crustacea and corals of the Upper Helderberg, Hamilton and Chemung Groups, pI.40, f.1-3. =Orthoceras eriense Hall. SyntyPe. Hall, J. 1879. Paleont. New York. v.5, pt.2, p.274, pl.40, f.1-3. Middle Devonian, Hamilton Grp. Shore of Lake Erie, Hamburg, Erie Co., New York, USA. Orthoceras sp. HyrotyPpE YPM 274 26 Type Catalog of Fossil Nautiloidea et al. Postilla 219 McLearn, F.H. 1924. Mem. Geol. Surv. Can. n.118, p.154, pl.21, f.19.° Late Silurian, Moydart Fm. 2 ft above base of section, zone a of McLearn, along shore between McDonald’s Brook and the point at the E side of McDonald’s Cove, SW of Arisaig Point, Arisaig, Antigonish Co., Nova Scotia, Canada. Collector: Twenhofel, W.H., 1908. HyeotyrpeE YPM 10549 Dunbar, C.O. 1924. Yale Univ. Press: New Haven (Conn.), ch.6, p.193. =Orthoceras dunbari Foerste. HOLotyre. Foerste, A.F. 1930. Contrib. Mus. Paleont. Univ. Mich. v.3, n.6, p.133, pl.2, f.4, pl.5, f.3. Late Pennsylvanian, Missourian, Ochelata Grp. About 15 mi N of Tulsa, Oklahoma, USA. Collector: Greene, F.C. HypotyepeE YPM 12771 Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap: 21) p29: Middle Silurian, Niagaran, Indian Point Fm. Eastern portion (higher in section), shore at Indian Point, Quebec, Canada. Collector: Northrop, S.A., 1927. “Incorrectly cited as YPM 465c. Perioidanoceras (?) chaleurense Foerste Hototype YPM 12774 Foerste, A.F. 1936a. Bull. Denison Univ. Scisbabavicie pet, DIstet3- =Perioidanoceras? chaleurense. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.227. Middle Silurian, Niagaran, Indian Point Fm. Eastern portion (higher in section), shore at Indian Point, Quebec, Canada. Collector: Northrop, S.A., 1927. Phragmoceras altum Foerste Hototype YPM 12744 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab: v:315,p:89), pli20) 1.3: Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pape2 ihipi2e9: Middle Silurian. Anse-a-la-Barbe, Port Daniel, Quebec, Canada. Collector: Schuchert, C., 1905. Phragmoceras anticostiense Foerste HoLotyrpe YPM 3878 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.320, pl.58, f.1. Middle Silurian, Chicotte Fm, Chicotte zone 1. Southwest Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Phragmoceras northropi Foerste HoLtotypeE YPM 12739 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.90, pl.21, f.2. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Papa2il, pr229: Middle Silurian, Niagaran, Gascons Fm. Shore, W of mouth of Anse-a-la-Barbe River, Quebec, Canada. Collector: Northrop, S.A., 1927. Piloceras acinaces Foerste* Syntype YPM 15298A Foerste, A.F. 1938. Geol. Soc. Am. Spec. Pap. 11, p.80, pl.16, f.4. Ulrich, E.O., A.F. Foerste, and A.K. Miller. 1943. Geol. Soc. Am. Spec. Pap. 49, p.22, ol.5, f.10."° Early Ordovician, Romaine Fm. Harbor Island, Mingan Islands, Gulf of St. Lawrence, Quebec, Canada. Collector: Twenhofel, W.H. Syntype YPM 15298B Foerste, A.F. 1938. Geol. Soc. Am. Spec. Pap: 11; p:80; pla: f-5: Ulrich, E.O., A.F. Foerste, and A.K. Miller. 1943. Geol. Soc. Am. Spec. Pap. 49, p.22, pS) fe Early Ordovician, Romaine Fm. Harbor Island, Mingan Islands, Gulf of St. Lawrence, Quebec, Canada. Collector: Twenhofel, W.H. “Both Foerste (1939) and Ulrich et al. (1943) cite Ulrich and Foerste as authors of the species. °Cited as Twenhofel Collection at the University of Wisconsin. “Ulrich et al. (1943) refers to another specimen (Geological Survey of Canada, 507a) as the holotype, but a holotype was not designated in the original publication. Planetoceras bellilineatum Miller, Dunbar and Condra HototyPpE YPM 13983 Postilla 219 Type Catalog of 27 Fossil Nautiloidea et al. Miller, A.K., C.O0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, pb 139) pl.3, 1-9-13: Middle Pennsylvanian, Breathitt Fm, Kendrick Shale Mbr. Cow Creek, Floyd Co., Kentucky, USA. Collector: Jillson, W.R., 4/6/1919. Polygrammoceras chicottense Foerste HototyPE YPM 3819 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. M154; p:266, pl:31))f: 1,2, pl.33;, f.1,2. Middle Silurian, Jupiter Fm, Jupiter zone 8. 1 mi W of Box Brook, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. HyrpotyPpeE YPM 26897 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.266, pl.32, f.1. Middle Silurian, Jupiter Fm, Jupiter zone 2?. 1.5 mi W of Box River, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. HyrotyPpE YPM 26898 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.266.° Early Silurian, Chicotte Fm, Chicotte zone 2. Southwest Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as Twenhofel Collection. Polygrammoceras ellisense Foerste SyntyPpE YPM 3656-3659, 3796 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.264. Late Ordovician, Ellis Bay Fm. Cape James, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Syntype YPM 3815 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.264, pl.28, f.7,8. Ordovician, Ellis Bay Fm, Ellis Bay zone 7. Ellis Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Syntype YPM 3816 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.264. Late Ordovician, Ellis Bay Fm. Cape James, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. SyntyPpE YPM 3817 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.264. Late Ordovician, Ellis Bay Fm. Table Mountain, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Polygrammoceras latolineatum Foerste HyrpotyPpe YPM 3818 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.265, pl.30, f.3.° Ordovician, Ellis Bay Fm, Ellis Bay zone 7. Ellis Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. “Incorrectly cited as YPM 2818. The other specimen described by Foerste, the holotype, cited as YPM 2316, is actually reposited at the National Museum of Canada, as indicated in the explanation for pl.29, f.2. Polygrammoceras sp. HypotyepE YPM 12720 Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.221. Middle Silurian, Niagaran, Gascons Fm. Just E of Marcil RR station, Quebec, Canada. Collector: Northrop, S.A., 1927. Polygrammoceras twenhofeli Foerste Hototyrpe YPM 20480 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.264, pl.29, f.3,4.° Late Ordovician, Ellis Bay Fm, Ellis Bay zone 1. Junction Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. *Cited as No. 13, Twenhofel Collection. Protokionoceras anticostiense Foerste HototyrpeE YPM 26899 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.267, pl.34, f.1.° Middle Silurian, Jupiter Fm, Jupiter zone 2. South- west Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. HyrotyPpeE YPM 3820 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.267, pl.34, f.2. 28 Type Catalog of Fossil Nautiloidea et al. Middle Silurian, Jupiter Fm, Jupiter zone 8. Southwest Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. HyrotyPpE YPM 3821 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.267. Middle Silurian, Chicotte Fm, Chicotte zone 2. Southwest Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. “Cited as No. 17, Twenhofel Collection. Protokionoceras microlineatum Foerste Hototyre YPM 12768 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.39, pl.7, f.1.° Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.220.* Hypotyrpe YPM 30891 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.39, pl.7, f.2.°° =Protokionoceras cf. microlineatum. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.220.° Middle Silurian, Niagaran, Indian Point Fm. Eastern portion (higher in section), shore at Indian Point, Quebec, Canada. Collector: Northrop, S.A., 1927. “Cited as YPM 12768A. °Cited as YPM 12768B. “Cited as Protokionoceras cf. microlineatum in the explanation for pl.7, f.2. Pseudorthoceras knoxense (McChesney) HypotyPpE YPM 13939 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.81, pl.1, f.6. Late Pennsylvanian, Cisco Grp. 8 mi N of Jim Ned Creek, N of Brownwood, Brown Co., Texas, USA. Collector: Greger, D.K. HypotyPpeE YPM 13951 Miller, A.K., C.O0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.81, pl.1, f.4. HyrpotyPpeE YPM 13952 Postilla 219 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p:dih plein to. Pennsylvanian, Copan Fm. Copan shale, 5 Mi. NE of Copan, Oklahoma, USA. Collector: Greger, D.K. HypotyrpeE YPM 13954 Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, prSile pledint.7 HypotypE YPM 13955A° Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, DSilplde tro. Hypotype YPM 13955B2.° Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p31), plid, t:9: Middle Pennsylvanian, Marmaton Grp, Labette Shale. St. Louis, St. Louis Co., Missouri, USA. Collector: Knight, J.B. “This is represented by one thin section. PA thorough search of the collections by the curatorial staff in the 1960s and 1990s could not locate this specimen. It is believed to be permanently lost. Rayonnoceras huecoense Miller, Dunbar and Condra Hototyrpe YPM 13975 Miller, A.K., C.O0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, DOS pl.2; ft Pennsylvanian, Bend Grp. Lower Bend, S side of the hills 3.7 mi W and a little S of the second “U” in “Hueco Mountains,” El Paso Quad., Texas, USA. Collector: King, R.E. Rizoceras (?) atlanticum Foerste Hototyee YPM 12741 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.48, pl.10, f.6. =Rizoceras? atlanticum. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.223 Middle Silurian. Anse-a-la-Barbe, Port Daniel, Quebec, Canada. Collector: Schuchert, C., 1905. Postilla 219 Schroederoceras (?) sp. HypotyPE YPM 3841 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.288. Ordovician, Ellis Bay Fm, Ellis Bay zone 4. 0.5 mi E of Junction Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Schuchertoceras anticostiensis (Billings) HypotyPpE YPM 3945 Miller, A.K. 1932b. Univ. lowa Stud. Nat. Hist. n.226, v.14, n.4, p.28, pl.3, f.6-9.° Late Ordovician, Ellis Bay Fm, Ellis Bay zone 7. Cliff between Bear Cliff and Cape Eagle, Anticosti Island, Quebec, Canada. Collector: Schuchert, C. and Twenhofel, W.H., 6/1908. “Cited as YPM 3807b. Schuchertoceras logani (Cooper) See Billingsites logani Cooper. Solenochilus brammeri Miller, Dunbar and Condra HoLtotyPpE YPM 14006 Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.234, pl.23, f.1, pl.24, f.1. ParatyPpE YPM 14005 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, 2384: pli22 sf. 6H7r. Late Pennsylvanian, Plattsburg Limestone. Murphy Quarry, NE of Louisville, Cass Co., Nebraska, USA. Solenochilus kerefordensis Miller, Dunbar and Condra Hototyrpe YPM 14003 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.232, pl.22, f.1-3. Late Pennsylvanian, Oread Limestone, Plattsmouth Mbr. Quarry E edge of Lecompton, Perry Quad., SW sec35T11SR18E, Douglas Co., Kansas, USA. Collector: Condra, G.E. and others. Solenochilus syracusensis Miller, Dunbar and Condra HototyrpeE YPM 14004 Type Catalog of 29 Fossil Nautiloidea et al. Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, D:283,, pl22, §.4.5; =Solenochilus syracusense. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.134, pl.32, f.5,6. Middle Pennsylvanian, Bluejacket Sandstone. Atlantic Oil Company, Roth, Tulsa, NE sec1T19NR17E, Tulsa Co., Oklahoma, USA. Collector: Condra, G.E. and others. Sphyradoceras (?) anticostiense Foerste HototyPeE YPM 3839 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.284, pl.41, f.1-3. Late Ordovician, Vaureal Fm, Vaureal zone 1. White Brook, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Sphyradoceras sp. HypotyPpE YPM 3840 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.284. Ordovician, English Head Fm, English Head zone 4. Carleton Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Spyroceras anticostiense Foerste Hototype YPM 20502 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.277, pl.37, £.4.° Late Ordovician, English Head Fm, English Head zone 2. Reef at North Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 26, Twenhofel Collection. Spyroceras chaleurense Foerste HototyrpeE YPM 12761 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.42, pl.6, f.5a,5b. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Paps21, p:22 1. Middle Silurian, Niagaran, West Point Fm. Along crest of ridge, Reddish Point, Quebec, Canada. Collector: Northrop, S.A., 1927. Spyroceras chicottense Foerste HototyepE YPM 20504 30 Type Catalog of Fossil Nautiloidea et al. Postilla 219 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.276, pl.34, f.4.° Early Silurian, Chicotte Fm, Chicotte zone 2. Southwest Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 29, Twenhofel Collection. Spyroceras crocus (Billings) HyrotyrpeE YPM 3834 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.278. Ordovician, English Head Fm, English Head zone 4. Carleton Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Spyroceras ferum (Billings) HypotypeE YPM 20518 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.278.° Late Ordovician, Vaureal Fm, Vaureal zone 4. Battery Point, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 30, Twenhofel Collection. Spyroceras magnosiphonatum Foerste SyntyPpE YPM 20521 Foerste, A.F. 1938. Geol. Soc. Am. Spec. Pap. 11, p.95, pl.19, f.2.° Middle Ordovician, Mingan Fm. Ammonite and Clearwater Points, E of Sea Cow Island, Mingan Islands area, Gulf of St. Lawrence, Quebec, Canada. Collector: Twenhofel, W.H. “Cited as Twenhofel Collection. Spyroceras maro (Billings) HypotyPpE YPM 20489 Foerste, A.F. 1938. Geol. Soc. Am. Spec. Pap. 11, p.93, pl.18, f.4.° Middle Ordovician, Mingan Fm. Clearwater Point, E of Sea Cow Island, Mingan Islands area, Gulf of St. Lawrence, Quebec, Canada. Collector: Twenhofel, W.H. HyrotyPpE YPM 35904 Foerste, A.F. 1938. Geol. Soc. Am. Spec. Pap. 11, p.93.° HypotyPpE YPM 75583 Foerste, A.F. 1938. Geol. Soc. Am. Spec. Paps 14/;.p:93, pl:20st:10. Middle Ordovician, Mingan Fm. 50 to 75 ft above base of formation, Mingan Island, Gulf of St. Lawrence, Quebec, Canada. Collector: Twenhofel, W.H. “Cited as Twenhofel Collection. Spyroceras microcancellatum Foerste HototyPpE YPM 20479 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n1540-275)ploie t3.. Late Ordovician, Ellis Bay Fm, Ellis Bay zone 1. Junction Cliff, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. “Cited as No. 28, Twenhofel Collection. Spyroceras microlineatum Foerste HototyPpE YPM 3835 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.274. Late Ordovician, Vaureal Fm, Vaureal zone 3. Cape Henry, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Spyroceras northropi Foerste Hototype YPM 12772 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.43, pl.6, f.1. Middle Silurian, Niagaran, Indian Point Fm. Eastern portion (higher in section), shore at Indian Point, Quebec, Canada. Collector: Northrop, S.A., 1927. Spyroceras sp. HypotyPpE YPM 12701 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.40, pl.6, f.4.° =Spyroceras sp. A. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.221. Middle Silurian, Niagaran, Clemville Fm. In road gutter near old limekiln, uphill and S of Bridge, Clemville, Quebec, Canada. Collector: Northrop, S.A., 1927. HypotyrpeE YPM 12717 Foerste, A.F. 1936a. Bull. Denison Univ. Sci. Lab. v.31, p.41, pl.6, f.3.” Postilla 219 =Spyroceras sp. B. Northrop, S.A. 1939. Geol. Soc. Am. Spec. Pap. 21, p.222. Middle Silurian, Niagaran, Gascons Fm. Morin Road, not far from RR track, Anse ala Barbe, Quebec, Canada. Collector: Schuchert, C., 8/1923. “Cited as Spyroceras sp. (Clemville). *Cited as Spyroceras sp. (Morrin). Spyroceras tenuiclathratum Foerste HoLotyrpe YPM 3837 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.275, pl.34, f.3. Late Ordovician, Vaureal Fm, Vaureal zone 3. Cape Henry, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Spyroceras twenholfeli Foerste HototyepeE YPM 20515 Foerste, A.F. 1938. Geol. Soc. Am. Spec. Pap. 11, p.97, pl.16, f.2.° Middle Ordovician, Mingan Fm. Ammonite and Clearwater Points, E of Sea Cow Island, Mingan Islands area, Gulf of St. Lawrence, Quebec, Canada. Collector: Twenhofel, W.H. HypotyPpE YPM 20509 Foerste, A.F. 1938. Geol. Soc. Am. Spec. Bape 11.p97, plGst.3: Ordovician, Mingan Fm. Eskimoe Island, Mingan Islands, Quebec, Canada. Collector: Twenhofel, W.H. “Cited as Twenhofel Collection. Spyroceras vaurealense Foerste HototyPpeE YPM 20507 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.277, pl.37, f.6.° Late Ordovician, Vaureal Fm, Vaureal zone 5. Natiskotek Bay, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1919. *Cited as No. 27, Twenhofel Collection. Stearoceras sanandreasense See Titanoceras sanandreasense Miller, Dunbar and Condra. Stearoceras sp. HypotypE YPM 16275 Type Catalog of 31 Fossil Nautiloidea et al. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.66. Late Permian. Beds 5 and 7 of Difunta section, concretionary shale, collection made along strike from Cerro Wencelao on S to 300 m W of El Indio on N, NW of Las Delicias, Coahuila State, Mexico. Collector: King, R.E. Stearoceras sublaeve (Miller, Dunbar and Condra) See Metacoceras sublaeve (Miller, Dunbar and Condra). Stenopoceras tularosense Miller HototyPE YPM 13080 Miller, A.K. 1932a. J. Paleont. v.6, n.1, p.68, pl.12, f.1-4. Early Permian, Bursum Fm. Clay pits, 1.25 mi E of Tularosa on US Hwy 70, CENTER SW sec21T14SR10E, Otero Co., New Mexico, USA. Collector: Baker, C.L. and Drake, N.F. Tainoceras monilifer Miller, Dunbar and Condra HototyPpeE YPM 6390 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.148, pl.10, f.1-4. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.31. Pennsylvanian, Cisco Grp. 3 mi S and 0.5 mi E of Jacksboro, Jack Co., Texas, USA. Collector: Greger, D.K., 1919. HypotyPpe YPM 13985 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, pl.10, f.5. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.31. Late Pennsylvanian, Plattsmouth Limestone. Quarry near the RR station, at Lecompton, Perry Quad., SW sec35T11SR18E, Douglas Co., Kansas, USA. Collector: Condra, G.E. and others. HypotyPpE YPM 13988 Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.148. Unklesbay, A.G. 1962. Bull. Okla. Geol. Surv. n.96, p.31. 32 Type Catalog of Fossil Nautiloidea et al. Late Pennsylvanian, Burlingame Limestone. 7.5 mi N of Topeka, Shawnee Co., Kansas, USA. Tainoceras nebrascense Miller, Dunbar and Condra SyntyPpE YPM 25795 Miller, A.K., C.O0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, pals deplete Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.88, pl.32, f.1,2. SyntyPE YPM 25796 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.151, pl.11, £.2. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.88, pl.32, f.3,4. SyntyPE YPM 25797 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, petSt ple 3: Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.88, pl.31, f.4,5. SyntyPpE YPM 25798 Miller, A.K., C.O0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, paton, pl: 1, 1-4. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.88, pl.30, f.3,4. SyntyPpE YPM 25799 Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, pal Si. pl lide, 6: Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.88, pl.31, f.1-3. Late Pennsylvanian, Fort Riley Limestone. Quarry at Beatrice power dam, Baneston, Gage Co., Nebraska, USA. Tainoceras rotundatum Miller, Dunbar and Condra HototyrpE YPM 13986 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.154, pl.12, f.2,3. Postilla 219 Late Pennsylvanian, Oread Limestone, Kereford Mbr. Snyderville Quarry, Snyderville, Avoca Quad., Cass Co., Nebraska, USA. Collector: Clark, and Turner. Tainoceras sp. HypotyPpE YPM 13987 Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.155, tf.24, pl.12, f.4-7. No locality information is available for this specimen. Temnocheilus sp. Hyeotyepe YPM 75584° Miller, A.K. and J.B. Owen. 1934. IA Univ. Stud. Nat. Hist. ns.280, v.16, n.3, p.225, tf.2B. Middle Pennsylvanian, Strawn Grp, Mingus Shale. Near Millsap, Parker Co., Texas, USA. IN thorough search of the collections by the curatorial staff in the 1960s and 1990s could not locate this specimen. It is believed to be permanently lost. Temnocheilus subrectangularis Miller, Dunbar and Condra HototyPpE YPM 13989A Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p60; pts: 1: t2: ParatyPpE YPM 13989B Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.160, pl.13, f.3. ParatyPpE YPM 13989C Miller, A.K., C.O0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.160. Middle Pennsylvanian, Breathitt Fm, Kendrick Shale Mbr. Dr. G.T. Kendrick Farm, head of Cow Creek (off of the Levisa Fork of Big Sandy River), Floyd Co., Kentucky, USA. Collector: Jillson, W.R., 4/6/1919. Titanoceras? ingens Miller, Dunbar and Condra HoLtotyPpE YPM 13999° Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.208, t32, pl-2O stale Postilla 219 Late Pennsylvanian, Wyandotte Limestone, Argentine Mbr. National Stone Quarry, Louisville, Cedar Creek Quad., SW sec7T12NR12E, Cass Co., Nebraska, USA. Collector: Condra, G.E. and others. “A thorough search of the collections by the curatorial staff in the 1960s and 1990s could not locate this specimen. It is believed to be permanently lost. Titanoceras sanandreasense Miller, Dunbar and Condra HoLotyrpe YPM 13998A Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.204, pl.17, f.1,2. =Stearoceras sanandreasense. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.59, pl.21, f.1,2. Paratype YPM 13998° Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.204. =Stearoceras sanandreasense. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.59. ParatyPpE YPM 13998B Miller, A.K., C-O. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.204, pl.13, f.7. =Stearoceras sanandreasense. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.59, tf.14. Paratype YPM 13998C Miller, A.K., C.0. Dunbar, and G.E. Condra. 1933. Bull. Neb. Geol. Surv. ser.2, n.9, p.204. =Stearoceras sanandreasense. Miller, A.K. and W. Youngquist. 1949. Geol. Soc. Am. Mem. 41, p.59. Late Permian, San Andres Limestone. W side of the Penasco River Valley, about 52 mi W of Artesia, on new highway between Artesia and Elk, on the way to Cloudcroft, SE corner sec12T16SR16E, Otero Co., New Mexico, USA. Collector: Baker, R.F. “This is a lot of four fragments. undet. Nautiloidea HypotypE YPM 28505 Type Catalog of 33 Fossil Nautiloidea et al. Pannella, G. 1972. Astro. Sp. Sci. v.16, tbl.1. Early Silurian, Arisaig Grp, Ross Brook Upper Mbr. Dark gray silty mudstone, fall block, 1273-1280 ft above base of Arisaig Grp section, exposed in first prominant seaward projecting cliff W of the mouth of Arisaig Brook along Northumberland Strait shore, Arisaig [datum: 1025 ft for contact of bottom of Ross Brook Upper Mbr with underlying Ross Brook Middle Mbr], Antigonish Co., Nova Scotia, Canada. Collector: Bambach, R.K., 1964 to 1965. Uranoceras (?) sp. HypotyPpE YPM 3862 Foerste, A.F. 1928a. Mem. Can. Geol. Surv. n.154, p.287. Late Ordovician, Ellis Bay Fm. Raven’s West, Anticosti Island, Quebec, Canada. Collector: Twenhofel, W.H., 1909. Williamsoceras adnatum Flower ParatyPpE YPM 26505 Flower, R.H. 1968. New Mexico Bur. Mines Min. Res. Mem. n.19, pt.2, p.28, pl.19, f.5. Ordovician, Garden City Fm. 1405 ft above base of Garden City near contact with Swan Peak, most easterly prominent dip slope of Garden City, about 100 ft above road vertically, N side of Green Canyon, 0.3 mi E of Ross locality 46.1A, and about 6384 ft E of Canyon mouth, and about 2.5 mi E of North Logan Logan Quad., N NE sec19T12NR2E, Cache Co., Utah, USA. Collector: Ross, R.J., Jr., 7/1947. Winnipegoceras aff. W. laticurvatum (Whiteaves) See Winnipegoceras sp. Winnipegoceras sp. Hyrotype YPM 25801 Crickmay, G.W. 1932. Am. J. Sci. v.24, n.143, p.379.° =Winnipegoceras aff. W. laticurvatum (Whiteaves). Hypotyee. Miller, A.K. and W.M. Furnish. 1937. J. Paleont. v.11, n.7, D504, PLO nial. Ordovician, Matapedia Series. Dark calcareous phyllite of Matapedia, E shore of Restigouche River, 5 mi upstream from Matapedia Village, Quebec, Canada. Collector: Crickmay, G.W. and Cooper, G.A., 7/29/1929. *Crickmay (1932) reports the locality as “3 miles upstream,” but the field label says “5 miles upstream.” 34 Type Catalog of Fossil Nautiloidea et al. Wutinoceras geronticum Flower HototyPpe YPM 28354 Flower, R.H. 1976. New Mexico Bur. Mines Min. Res. Mem. n.28, pt.1, p.10, pl.5, f.1.° Middle Ordovician, Table Head Grp. Division 10 or K, lower Table Head, lower Chazy, NE side of Table Head, western Newfoundland, Canada. Collector: Schuchert, C. and Twenhofel, W.H., 8/6/1910. “Not pl.3, f.13, which is actually a paratype of Wutinoceras giganteum. Wutinoceras giganteum Flower Hototyrpe YPM 28351 Flower, R.H. 1976. New Mexico Bur. Mines Min. Res. Mem. n.28, pt.1, p.10, pl.2, f.4, DES iali2s DES TG: Middle Ordovician, Table Head Grp. Division 10 or K, lower Table Head, lower Chazy, NE side of Table Head, western Newfoundland, Canada. Collector: Schuchert, C. and Twenhofel, W.H., 8/6/1910. ParatyPE YPM 28352 Literature Cited Postilla 219 Flower, R.H. 1976. New Mexico Bur. Mines Min. Res. Mem. n.28, pt.1, p.10, pl.3, f.13, 1 inthe oe Middle Ordovician, Table Head Grp. Top of zone 10 of Logan's section, a little below the sponge bed, lower Table Head, lower Chazy, from lighthouse eastward along shore, Point Riche, western Newfoundland, Canada. Collector: Schuchert, C. and Twenhofel, W.H., 8/1/1910. “PI.3, f.13 is not the holotype of Wutinoceras geronticum as stated in the explanation; it is actually YPM 28352, a paratype of Wutinoceras giganteum. Acknowledgements The authors wish to thank Rex Crick and Royal Mapes for reviewing this manuscript. Many thanks to Brent Horstman for editing and formatting this catalog. Berry, E.W. 1928. Cephalopod adaptations — the record and its interpretation. The Quarterly Review of Biology, 3(1):92—108. Cooper, G.A. 1930. Part Il, New species from the Upper Ordovician of Perce, /n Schuchert, C. and G.A. Cooper, 1930. Upper Ordovician and Lower Devonian stratigraphy and paleontology of Perce, Quebec. American Journal of Science, 220(118):265—288. Crickmay, G.W. 1932. Evidence of Taconic Orogeny in Matapedia Valley, Quebec. American Journal of Science, 24(143):368—386. Cullison, J.S. 1944. The Stratigraphy of some Lower Ordovician formations of the Ozark Uplift. Technical Series Bulletin of the University of Missouri School of Mines and Metal- lurgy, 15(2):1-112. Dunbar, C.O. 1924. Phases of cephalopod adaptation. /n Thorpe, M.R. (ed.), Organic adaptation to environment. New Haven: Yale University Press. pp.187—224. Flower, R.H. 1968. Some additional Whiterock cephalopods. New Mexico Bureau of Mines and Mineral Resources Memoir, 19(2):17—55. 1976. New American Wutinoceratidae with review of actinoceroid occurrences in eastern hemisphere. New Mexico Bureau of Mines and Mineral Resources Memoir, 98(1):1-12. Flower, R.H. and K.E. Caster. 1935. The stratigraphy and paleontology of northwestern Pennsylvania, Part Il: Paleontology, Section A: The cephalopod fauna of the Conewango Series of the Upper Devonian in New York and Pennsylvania. Bulletins of American Paleontology, 22(75):197—270. Foerste, A.F. 1925. Cephalopoda of Lake Timiskaning area and certain related species, /n Hume, G.S., The Paleozoic Outlier of Lake Timiskaming, Ontario and Quebec. Geological Survey of Canada Memoir, 145:64—93. Postilla 219 Type Catalog of 35 Fossil Nautiloidea et al. 1928a. The cephalopoda fauna of Anticosti Island. /n Twenhofel, W.H. Geology of Anticosti Island. Geological Survey of Canada Memoir, 154:257-321. 1928b. Some hitherto unfigured Ordovician cephalopods from Anticosti Island. Proceedings and Transactions of the Royal Society of Canada, 122(4):223-234. 1930. The color patterns of fossil cephalopods and brachiopods, with notes on gastropods and pelecypods. Contributions of the Museum of Paleontology, University of Michigan, 3(6):109—150. 1936a. Silurian cephalopods of the Port Daniel Area on Gaspe Peninsula, in eastern Canada. Denison University Bulletin, Journal of the Science Laboratory, 31:1—92. 1936b. Cephalopods from the Upper Ordovician of Perce, Quebec. Journal of Paleontology, 10(5):373-384. 1938. Cephalopoda, /n Twenhofel, W.H. Geology and paleontology of the Mingan Islands, Quebec. Geological Society of America Special Paper, 11:76—105. Furnish, W.M., B.F. Glenister and R.H. Hansman. 1962. Brachycycloceratidae, novum, deciduous Pennsylvanian nautiloids. Journal of Paleontology, 36(6):1341—1356. Grabau, A.W. 1899. Geology and paleontology of Eighteen Mile Creek and the Lake Shore sections of Erie County New York. Bulletin of the Buffalo Society of Natural Science, 6:93-403. Hall, J. 1876. Illustrations of Devonian fossils: Gasteropoda, Pteropoda, Cephalopoda, Crustacea and corals of the Upper Helderberg, Hamilton and Chemung Groups. (Published in advance of the Paleontology of New York, by authority of the Legislature of the State of New York.) Albany: Weed, Parson and Company: 7pp., 39pl. 1879. Descriptions of the Gasteropoda, Pteropoda and Cephalopoda of the Upper Helderberg, Hamilton, Portage and Chemung Groups. Paleontology of New York, 5(2):1—492. 1886. Plate and explanations for “Paleont. NY, v. 5, pt. 2 Supplement.” Fifth Annual Report of the State Geologist, 1885: 14 pl. 1888. Supplement, containing captions and illustrations of Pteropoda, Cephalopoda and Annelida. Paleontology of New York, 5(2):1—42. [ICZN] International Commission on Zoological Nomenclature. 1985. International code of zoological nomenclature, 3rd ed. Adopted by the XX International union of biologi- cal sciences; W.L . Ride, C.W, Sabrosky, G. Bernardi and R.V. Melville (eds.). Berkeley: University of California Press. 338 pp. Kobayashi, T. 1934. The Cambro-Ordovician formations and faunas of South Chosen. Paleontology, Part |: Middle Ordovician Faunas. Journal of the Faculty of Science, Imperial University of Tokyo, sec.2, 3:329-520. Landman, N.H. 1982. In pursuit of the pearly Nautilus. Discovery,16(1):10—19. MacLachlan, W.A., T.W. Bryant, E.D. Judkins, R.C. Koozmin, R.C. Orndorff, M.L. Hubert, C.R. Murdock, S.W. Starrat and J.R. Le Compte (compilers). 1992. Stratigraphic nomenclature databases for the United States, its possessions and territories: Geologic Names Unit Lexicon (GNULEX). Denver: U.S. Geological Survey, 1 CD-ROM. Mapes, R.H. and T.S. Evans. 1995. The color pattern on a Cretaceous nautiloid from South Dakota. Journal of Paleontology, 69(4):786—786. Marsh, O.C. 1869. On the Preservation of color in fossils from Paleozoic formations. Proceedings of the American Association for the Advancement of Science, 1868:325—326 McLearn, F.H. 1924. Paleontology of the Silurian Arisaig, Nova Scotia. Geological Survey of Canada Memoir, 118:1—180. Miller, A.K. 1930. A new ammonoid fauna of Late Paleozoic age from western Texas. Journal of Paleontology, 4(4):383—412. 1932a. A Pennsylvanian cephalopod fauna from south-central New Mexico. Journal of Paleontology, 6(1):59-93. 1932b. The mixochoantic Cephalopods. University of lowa Studies in Natural History, n.226, 14(4):1-67. 36 Type Catalog of Postilla 219 Fossil Nautiloidea et al. 1944. Part lV: Permian Cephalopods. /n King, R.E. et al. 1944, Geology and Paleontology of the Permian area northwest of Las Delicas, southwestern Coahuila, Mexico. Geological Society of America Special Paper, 52:71—127. Miller, A.K. and J.B. Owen. 1934. Cherokee nautiloids of the northern Mid-Continent Region. University of lowa Studies in Natural History, n.280, 16(3):187—272. Miller, A.K. and J.S. Cullison. 1946. Early Ordovician cephalopods with subterminal apertures. Journal of Paleontology, 20(2):158—162. Miller, A.K. and W.M. Furnish. 1937. Ordovician cephalopods from the Black Hills, South Dakota. Journal of Paleontology, 11(7):535—-551. 1937. A Winnipegoceras from the Ordovician of the Matapedia Valley, Quebec. Journal of Paleontology, 11(7):550—-551. Miller, A.K. and W. Youngquist. 1947. Ordovician fossils from the southwestern part of the Canadian arctic Archipelago. Journal of Paleontology, 21(1):1—18. 1949. American Permian nautiloids. Geological Society of America Memoir, 41:1-218. Miller, A.K., C.O. Dunbar, and G.E. Condra. 1933. The nautiloid cephalopods of the Pennsylvanian System in the Mid-Continent Region. Bulletin of the Nebraska Geological Survey, ser.2, 9:1—240. Northrop, S.A. 1939. Paleontology and stratigraphy of the Silurian rocks of the Port Daniel- Black Cape Region, Gaspe. Geological Society of America Special Paper, 21:1—302. Pannella, G. 1972. Paleontological evidence on the earth’s rotational history since early Precambrian. Astrophysics and Space Science, 16:212—237. Reeside, J.B., Jr. 1927. Cephalopods from the lower part of the Cody Shale of Oregon Basin, Wyoming. U.S. Geological Survey Professional Paper, 150-A:1—19. Ruedemann, R. 1921. Paleontologic contributions from the New York State Museum. Part 4, On color bands in Orthoceras. New York State Museum Bulletin, 227-228:79-88. Shrock, R.R. and W.H. Twenhofel. 1939. Silurian fossils from northern Newfoundland. Journal of Paleontology, 13(3):241—266. Tanabe, K., N.H. Landman and W. Weitschat. 1993. Septal necks in Mesozoic Ammonoidea: structure, ontogenetic development, and evolution. /n M.R. House (ed.). The Ammonoidea: environment, ecology, and evolutionary change. Systematics Association Special Volume, 47:57-84. Ulrich, E.O. A.F. Foerste and A.K. Miller. 1943. Ozarkian and Canadian cephalopods, Part 2: Brevicones. Geological Society of America Special Paper, 49:1—240. Ulrich, E.O., A.F. Foerste, A.K. Miller and W.M. Furnish. 1942. Ozarkian and Canadian cephalopods, Part 1: Nautilicones. Geological Society of America Special Paper, 37:1—157. Unklesbay, A.G. 1962. Pennsylvanian cephalopods of Oklahoma. Oklahoma Geological Survey Bulletin, 96:1—150. Woodring, W.P. 1959. Geology and paleontology of canal zone and adjoining parts of Panama: Geology and description of Tertiary mollusks (Gastropods: Vermetidae to Thaididae). U.S. Geological Survey Professional Paper, 306-B:147—240. Related type catalogs in this series White, R.D. 1995. A type catalog of fossil invertebrates (Arthropoda: Hexapoda) in the Yale Peabody Museum. Postilla, 209:1—55. 1996a. A type catalog of fossil invertebrates (Arthropoda: Crustacea) in the Yale Peabody Museum. Postilla, 210:1—19. 1996b. A type catalog of fossil invertebrates (Arthropoda: Chelicerata) in the Yale Peabody Museum. Postilla, 211:1—-13. 1996c. A type catalog of fossil invertebrates (Graptolithina) in the Yale Peabody Museum. Postilla, 212:1—24. Postilla 219 Type Catalog of 37 Fossil Nautiloidea et al. 1997. A type catalog of fossil invertebrates (Archaeocyatha, Porifera, Receptaculitidae and Stromatoporoidea) in the Yale Peabody Museum. Postilla, 213:1—23. 1998. A type catalog of fossil invertebrates (Echinodermata) in the Yale Peabody Museum. Postilla, 215:1-31. 1998. A type catalog of fossil invertebrates (Mollusca: Coleoidea, Monoplacophora and Scaphopoda) in the Yale Peabody Museum. Postilla, 216:1-6. White, R.D., B.H. Horstman, K.E. McFadden and L.K. Skorina. 1999. A type catalog of fossil invertebrates (Mollusca: Gastropoda) in the Yale Peabody Museum. Postilla, 218:1—72. White, R.D. and B.S. Lieberman. 1998. A type catalog of fossil invertebrates (Arthropoda: Trilobita) in the Yale Peabody Museum. Postilla, 214:1-151. The Authors Russell D. White. Division of Invertebrate Laura K. Skorina, Division of Invertebrate Paleontology, Peabody Museum of Natural Paleontology, Peabody Museum of Natural History, Yale University, New Haven, CT History, Yale University, New Haven, CT 06520-8118. 06520-8118. SMITHSONIAN INSTITUTION LIBRARIES EET 3 9088 01206 5249