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Texanoceras, a new neptunoceratid cephalopod genus from the Upper Pennsylvanian Graham and Caddo Creek formations in north-central Texas

Published online by Cambridge University Press:  14 July 2015

Shuji Niko  and
Royal H. Mapes
Shuji Niko
Affiliation:
1Department of Environmental Studies, Faculty of Integrated Arts and Sciences, Hiroshima University, 1-7-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8521, Japan,
Royal H. Mapes
Affiliation:
2Department of Geological Sciences, Ohio University, Athens, OH 45701, USA,
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Abstract

A neptunoceratid cephalopod, Texanoceras jacksboroensis n. gen. n. sp., is described from the Virgilian (Upper Pennsylvanian) Graham and Caddo Creek Formations in Texas, North America. The family Neptunoceratidae was previously represented by a single genus, Tetrapleuroceras. This new material provides important emendations to the diagnostic concept of the enigmatic family including shell orientation, mature modification and siphuncular structure. Although higher taxonomic position of Neptunoceratidae is difficult to determine at present, morphologic similarities between the family and the orthoceratid (?) family Brachycycloceratidae are discussed.

Type
Research Article
Information
Journal of Paleontology , Volume 85 , Issue 3 , May 2011 , pp. 519 - 523
Copyright
Copyright © The Paleontological Society 

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References

Agassiz, L. 1847. An Introduction to the Study of Natural History, in a Series of Lectures Delivered in the Hall of the College of Physicians Surgeons. New York, 58 p.Google Scholar
Boardman, D. R. II, Work, D. M., Mapes, R. H., and Barrick, J. E. 1994. Biostratigraphy of Middle and Late Pennsylvanian (Desmoinesian–Virgilian) ammonoids. Kansas Geological Survey, Bulletin 232, 121 p.Google Scholar
Boston, W. 1988. The surficial geology, paleontology, and paleoecology of the Finis Shale (Pennsylvanian, lower Virgilian) in Jack County, Texas. Unpublished , Ohio University, 293 p.Google Scholar
Dzik, J. 1984. Phylogeny of the Nautiloidea. Palaeontologia Polonica, 45:1–219.Google Scholar
Furnish, W. M., Glenister, B. F., and Hansman, R. H. 1962. Brachycycloceratidae, novum, deciduous Pennsylvanian nautiloids. Journal of Paleontology, 36:1341–1356.Google Scholar
Hansman, R. H. 1955. Straight Pennsylvanian orthochoanitic nautiloids of North America. Unpublished , State University of Iowa, Iowa City, 73 p.Google Scholar
Meek, F. B. and Worthen, A. H. 1860. Descriptions of new Carboniferous fossils from Illinois and other western states. Proceeding of the Academy of Natural Sciences of Philadelphia, p. 447–472.Google Scholar
Meek, F. B. and Worthen, A. H. 1866. Descriptions of invertebrates, p. 143–411, pls. 14–20, 23–32. In Worthen, A. H. (ed.), Geological Survey of Illinois. vol. 2. Palaeontology.Google Scholar
Miller, A. K. and Downs, H. R. 1950. Ammonoids of the Pennsylvanian Finis Shale of Texas. Journal of Paleontology, 24:185–218.Google Scholar
Miller, A. K., Dunbar, C. O., and Condra, G. E. 1933. The nautiloid cephalopods of the Pennsylvanian System in the Mid-Continent region. Nebraska Geological Survey, Bulletin 9, 240 p.Google Scholar
Niko, S. and Mapes, R. H. 2009. Redescription and new information on the Carboniferous cephalopod Brachycycloceras normale Miller, Dunbar and Condra, 1933. Paleontological Research, 13:337–343.CrossRefGoogle Scholar
Shimansky, V. N. 1949. Verkhnekamennougolniye nautiloidei yuzhnogo Urala (Upper Carboniferous nautiloids from the Southern Urals). Doklady Akademii Nauk SSSR, 66:929–932. (In Russian).Google Scholar
Shimansky, V. N. 1956. Problemy i Zadachi Paleontologicheskikh Issledovaniy (Problems and Aims of Paleontological Research). Moskovskiy Ordena Lenina i Ordena Trudovogo Krasnogo Znameni Gosudarstvenniy Universitet Imeni M. V. Lomonosova, Moskva, 95 p. (In Russian).Google Scholar
Shimansky, V. N. 1967. Kamennougolniye Nautilida (Carboniferous Nautilida). Akademiia Nauk SSSR, Trudy Paleontologicheskogo Instituta, 115:1–258. (In Russian).Google Scholar
Sweet, W. C. 1964. Nautiloidea—Orthocerida, p. K216–K261. In Moore, R. C. et al. (eds.), Treatise on Invertebrate Paleontology. Part K. Mollusca 3. Geological Society of America and University of Kansas Press, Boulder, Colorado and Lawrence, Kansas.Google Scholar
Teichert, C. 1964. Doubtful taxa, p. K484–K490. In Moore, R. C. et al. (eds.), Treatise on Invertebrate Paleontology. Part K. Mollusca 3. Geological Society of America and University of Kansas Press, Boulder, Colorado and Lawrence, Kansas.Google Scholar
Windle, D. L. Jr 1973. Studies in Carboniferous nautiloids: cyrtocones and annulate orthocones. Unpublished , University of Iowa, Iowa City, 427 p.Google Scholar
Work, D. M. and Mapes, R. H. 2009. New occurrences of the Pennsylvanian index ammonoid Dunbarites from the North American Midcontinent. Journal of Paleontology, 83:405–413.Google Scholar