Paraorthacodus andersoni

(Case, 1978)


Classification: Elasmobranchii Hexanchiformes Paraorthacodontidae

Reference of the original description
Case, G.R. (1978)
A new selachian fauna from the Judith River Formation (Campanian) of Montana. Palaeontographica, Abt. A, 160(1–6), 176–205

Synonyms / new combinations and misspellings
Hybodus storeri, Paraorthacodus storeri, Paraorthacodus striatus, Synechodus andersoni, Synechodus striatus

Types
Paraorthacodus andersoni

Hybodus storeri
Holotype: USTL: MTA 3;
Synechodus andersoni
Holotype: USTL: MTA 4; Paratype: USTL: MTA 5;
Synechodus striatus
Holotype: USTL: MTA 6;


Description:


Citation: Paraorthacodus andersoni (Case, 1978): In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 01/2023

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Description
Original diagnose after Case (1978) p. 184 [388]: Teeth of large size, averaging 2 cm in root width, 1 1/2 cm in height (central cusp to base of root), one large central cusp at center of root, conical in shape and tapering to a point at its apex, with two smaller sigmoid cusplets on either side.

Remarks
valid after Hoganson et al. (2019) p. 16 [27441];


References
Hoganson, J.W. & Erickson, M. & Holland, F.D. (2019)
Chondrichthyan and Osteichthyan Paleofaunas from the Cretaceous (Late Maastrichtian) Fox Hills Formation of North Dakota, USA: Paleoecology, Paleogeography, and Extinction. Bulletins of American Paleontology, 398, 1–94
Cook, T.D. & Brown, E. & Ralrick, P.E. & Konishi, T. (2017)
A late Campanian Euselachian Assemblage from the Bearpaw Formation of Alberta, Canada: Some Notable Range Extensions. Canadian Journal of Earth Sciences, 54(9), 973–980
DOI: 10.1139/cjes-2016-0233
Adolfssen, J. & Ward, D.J. (2014)
Crossing the boundary: an elasmobranch fauna from Stevns Klint, Denmark. Palaeontology, 57(3), 591–629
DOI: 10.1111/pala.12079
Sørensen, A.M. & Surlyk, F. & Lindgren, J. (2013)
Food resources and habitat selection of a diverse vertebrate fauna from the upper lower Campanian of the Kristianstad Basin, southern Sweden. Cretaceous Research, 42, 85–92
DOI: 10.1016/j.cretres.2013.02.002
Adolfssen, J. (2012)
Palaeoenvironment and Shark Evolution across the K/T-boundary on Southern Zealand. Phd Thesis, Faculty of Science, University of Copenhagen
Siverson, M. (1993)
Late Cretaceous and Danian neoselachians from southern Sweden. Lund Publications in Geology, 110, 1–28
Siverson, M. (1992)
Late Cretaceous Paraorthacodus (Palaeospinacidae, Neoselachii) from Sweden. Journal of Paleontology, 66(6), 994–1001
Siverson, M. (1989)
Palaeospinacid selachians from the Late Cretaceous of the Kristianstad Basin, Skåne, Sweden. Master thesis, University of Lund
Case, G.R. (1978)
A new selachian fauna from the Judith River Formation (Campanian) of Montana. Palaeontographica, Abt. A, 160(1–6), 176–205
Case, G.R. (1978)
A new selachian fauna from the Judith River Formation (Campanian) of Montana. Palaeontographica, Abt. A, 160(1–6), 176–205
Case, G.R. (1978)
A new selachian fauna from the Judith River Formation (Campanian) of Montana. Palaeontographica, Abt. A, 160(1–6), 176–205