Pristiophorus tumidens

(Woodward, 1932)


Classification: Elasmobranchii Pristiophoriformes Pristiophoridae

Reference of the original description
Woodward, A.S. (1932)
A Cretaceous pristiophorid shark. Annals and Magazine of Natural History, (Series 10), 10, 476–479

Synonyms / new combinations and misspellings
Pristiophorus cf. tumidens, Propristiophorus tumidens

Types
Pristiophorus tumidens



Description:


Citation: Pristiophorus tumidens (Woodward, 1932): In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 04/2024

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Description
Original diagnose after Woodward (1932) p. 476 [2608]: Type.-In the type-specimen, which is shown of about one-third the natural size in PI. XVIII., the anterior half of the fish is exposed from below, crushed but not much distorted. Fragments have been removed to the counterpart, which seems to be lost. Other fish-remains occur on the same slab, notably some examples of the small Charitosomnus lineolatus, of which one lies across the rostrum just behind its middle. Specific characters.-Rostrum at least 15 cm. in length, regularly tapering, and less than half as wide distally as proximally. Teeth of the mouth with an erect principal cone and a single pair of large, slightly divergent, lateral denticles; base of each tumid and marked with delicate vertical striae. Branchial region slightly longer than wide. Depth of pectoral fin about three times width of the pectoral arch, its gently curved anterior border with a row or cluster of pointed dermal tubercles on stellate bases; similar dermal tubercles sparsely scattered over part of the membrane of the same fin.

Remarks
shark-references Species-ID=5028;
valid after Cappetta (1980) p. 80 [326]; Engelbrecht et al. (2017) p. 842 [25208]

References
Guinot, G. & Condamine, F.L. (2023)
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
Capassoa, L. & Yamaguchi, A. (2023)
A batoid hembryo (Chondrichthyes: Batoidea), from the marine upper Cenomanian (Late Cretaceous) Sannine limestone of Hjoula, Lebanon. Historical Biology, in press
DOI: 10.1080/08912963.2022.2162395
Kriwet, J. (2004)
The systematic position of the Cretaceous sclerorhynchid sawfishes (Elasmobranchii, Pristiorajea). In G. Arratia & A. Tintori (Eds.), Mesozoic Fishes 3 – Systematics, Paleoenvironments and Biodiversity (pp. 57–73). Verlag Dr. Friedrich Pfeil
Forey, P.L. & Yi, L. & Patterson, C. & Davies, C.E. (2003)
Fossil fishes from the Cenomanian (Upper Cretaceous) of Namoura, Lebanon. Journal of Systematic Palaeontology, 1(4), 227–330
DOI: 10.1017/S147720190300107X
Kemp, N.R. (1991)
Chapter 15: Chondrichthyans in the Cretaceous and Tertiary of Australia. Vertebrate Palaeontology of Australasia: 497–568, 40 pl.
Cappetta, H. (1980)
Les Sélaciens du Crétacé supérieur du Liban. I. Requins. Palaeontographica, Abt. A, 168(1–4), 69–148
Andrews, S.M. & Gardiner, B.G. & Miles, R.S. & Patterson, C. (1967)
CHAPTER 26 Pisces In The Fossil Record. HARLAND, W.B. et al. (Eds.) 1967, London (Geological Society), pp: 627-683
Woodward, A.S. (1932)
A Cretaceous pristiophorid shark. Annals and Magazine of Natural History, (Series 10), 10, 476–479
DOI: 10.1080/00222933208673596