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Revision of Cretorectolobus (Neoselachii) and description of Cederstroemia n. gen., a Cretaceous carpet shark (Orectolobiformes) with a cutting dentition

Published online by Cambridge University Press:  20 May 2016

Mikael Siverson
Mikael Siverson*
Affiliation:
Department of Historical Geology and Palaeontology, Lund University, Sölvegatan 13, S-223 62 Lund, Sweden
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Abstract

The nominal Eucrossorhinus microcuspidatus and Cretorectolobus olsoni from the Campanian Judith River Formation of Montana, correspond to teeth from juvenile and adult individuals of one single species of orectoloboid shark. The type series of the latter is heterogeneous and includes, besides the holotype, a tooth belonging to a different orectoloboid of a new generic type named Cederstroemia. This genus is unique among Orectolobiformes by comprising sharks with dental adaptations towards a strict cutting dentition. Two new species of Cederstroemia are described: C. triangulata from the Judith River Formation of Montana and C. nilsi from the early Campanian of the Kristianstad Basin, Skåne, Sweden. An emended diagnosis is provided for Cretorectolobus, clarifying the dental characteristics of its members.

Type
Research Article
Information
Journal of Paleontology , Volume 69 , Issue 5 , September 1995 , pp. 974 - 979
Copyright
Copyright © The Paleontological Society 

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References

Biddle, J. P. 1993. Les elasmobranches de l'Albien inférieur et moyen (Crétacé inférieur) de la Marne et de la Haute-Marne (France). Belgian Geological Survey, Professional Paper, 264:191–240.Google Scholar
Bonaparte, C. L. 1832-1841. Iconografia della fauna Italica, Volume 3, Pesci, Roma (no pagination).Google Scholar
Cappetta, H. 1975. Sélaciens et holocéphale du Gargasien de la région de Gargas (Vaucluse). Géologie Méditerranéenne, 2:115–134.CrossRefGoogle Scholar
Cappetta, H. 1987. Mesozoic and Cenozoic elasmobranchii. Chondrichthyes II. In Schultze, H. P. (ed.), Handbook of Palaeoichthyology, 3B. Gustav Fisher Verlag, Stuttgart, 193 p.Google Scholar
Case, G. R. 1978. A new selachian fauna from the Judith River Formation (Campanian) of Montana. Palaeontographica (A), 160:176–205.Google Scholar
Case, G. R. 1987. A new selachian fauna from the late Campanian of Wyoming (Teapot Sandstone Member, Mesaverde Formation, Big Horn Basin). Palaeontographica (A), 197:1–37.Google Scholar
Christensen, W. K. 1975. Upper Cretaceous belemnites from the Kristianstad area in Scania. Fossils and Strata, 7:1–69.CrossRefGoogle Scholar
Compagno, L. J. V. 1973. Interrelationships of living elasmobranchs, p. 15–61. In Greenwood, P. H., Miles, R. S., and Patterson, C. (eds.), Interrelationships of Fishes. Zoological Journal of the Linnean Society, Supplement 1, Volume 53.Google Scholar
Compagno, L. J. V. 1984. F A O species catalogue, Volume 4, Sharks of the world. An annotated and illustrated catalogue of shark species known to date. F A O Fisheries Synopsis (125), 4, Part 1:1–249, Part 2:250-655.Google Scholar
Dumeril, A. M. C. 1806. Zoologie analytique, ou méthode naturelle de classification des animaux. Paris, 344 p.Google Scholar
Herman, J. 1977. Les sélaciens des terrains néocrétacés et paléocènes de Belgique et des contrées limitrophes. Éléments d'une biostrati-graphique intercontinentale. Mémoires pour servir à i'explication des Cartes géologiques et minières de la Belgique. Service Géologique de Belgique (date of imprint 1975), 15:1–401.Google Scholar
Herman, J. 1982. Additions to the fauna of Belgium. 6. The Belgian Eocene Squalidae. Tertiary Research, 4:1–6.Google Scholar
Herman, J., Hovestadt-Euler, M., and Hovestadt, D. C. 1992. Order: Orectolobiformes, Families: Brachaeluridae, Ginglymostomatidae, Hemiscyllidae, Orectolobidae, Parascyllidae, Rhiniodontidae, Stegostomatidae. Order: Pristiophoriformes, Family: Pristiophoridae. Order: Squatiniformes, Families: Squatinidae, p. 193–254. In Stehmann, M. (ed.), Contributions to the Study of the Comparative Morphology of Teeth and other Relevant Ichthyodorulites in Living Supraspecific Taxa of Chondrichthyan Fishes. Part A, No. 4. Bulletin de l'Institut Royal des Sciences naturelles de Belgique, biologie, Volume 62.Google Scholar
Kemp, N. R. 1991. Chondrichthyans in the Cretaceous and Tertiary of Australia, p. 497–568. In Vickers-Rich, P., Monaghan, J. M., Baird, R. F., and Rich, T. H. (eds.), Vertebrate Palaeontology of Australia. Pioneer Design Studio Pty Ltd, Lilydale, for and in cooperation with the Monash University Publications Committee, Melbourne.Google Scholar
Landemaine, O. 1991. Sélaciens nouveaux du Crétacé supérieur du sud-ouest de la France quelques apports a la systematique des elasmobranches. Société Amicale des Géologues Amateurs, 1:1–45.Google Scholar
Langston, W. Jr. 1975. The ceratopsian dinosaurs and associated lower vertebrates from the St. Mary River Formation (Maestrichtian) at Scabby Butte, southern Alberta. Canadian Journal of Earth Sciences, 12:1576–1608.Google Scholar
Pledge, N. S. 1985. An Early Pliocene shark tooth assemblage in South Australia. Special Publication, South Australia Department of Mines and Energy, 5:287–299.Google Scholar
Regan, C. T. 1908. A revision of the sharks of the family Orectolobidae. Proceedings of the Royal Society of London, 1908:347–364.Google Scholar
Reuss, A. E. 1846. Die Versteinerungen der böhmischen Kreideformation. Zweite Abtheilung, Stuttgart, 148 p.Google Scholar
Schweizer, R. 1964. Die Elasmobranchier und Holocephalen aus den Nusplingen Platten Kalken. Palaeontographica (A), 123:58–110.Google Scholar
Siverson, M. 1992a. Biology, dental morphology and taxonomy of lamniform sharks from the Campanian of the Kristianstad Basin, Sweden. Palaeontology, 35:519–554.Google Scholar
Siverson, M. 1992b. Late Cretaceous Paraorthacodus (Palaeospinacidae, Neoselachii) from Sweden. Journal of Paleontology, 66:994–1001.Google Scholar
Siverson, M. 1993. Late Cretaceous and Danian neoselachians from southern Sweden. Lund Publications in Geology, 110:1–28.Google Scholar
Ward, D. 1987. Book review: Henri Cappetta: Chondrichthyes II, Mesozoic and Cenozoic Elasmobranchii. Journal of Vertebrate Paleontology, 7:474–475.CrossRefGoogle Scholar
Whitley, G. P. 1939. Taxonomic notes on sharks and rays. The Australian Zoologist, 9:227–262.Google Scholar
Williamson, T. E., Lucas, S. G., and Pence, R. 1989. Selachians from the Hosta Tongue of the Point Lookout Sandstone (Upper Cretaceous, Santonian), Central New Mexico. New Mexico Geological Society Guidebook, 40:239–245.Google Scholar
Winkler, T. C. 1874. Mémoire sur quelques restes de poissons du Système Heersien. Archives du Musée Teyler, 4:1–5.Google Scholar