Hypolophites hutchinsi

Case, 1996


Classification: Elasmobranchii Myliobatiformes Dasyatidae

Reference of the original description
Case, G.R. (1996)
A new selachian fauna from the Lower Hornestown Formation (Early Paleocene/Montian) of Monmouth County, New Jersey. Palaeontographica, Abt. A, 242(1–3), 1–14

Types
Hypolophites hutchinsi
Holotype: AMNH.: 14585; Paratype: AMNH.: 13875; AMNH.: 13876; AMNH.: 13877; AMNH.: 13883; AMNH.: 13884;


Description:


Citation: Hypolophites hutchinsi Case, 1996: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 03/2024

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Description
Original diagnose after Case (1996) p. 9 [397]: Isolated crushing teeth forming a mosaic pattern dental plate similar to the stingrays, with the exception that the teeth are not elongated chevrons such as are found in the flattened dental plates of the rays. Teeth of small size, averaging 5 mm in overall crown width and 4 mm in their overall height. Teeth of Hypolophites hutchinsi nov. sp. differ from Hypolophites sp. of the Thanetian of Sessao, Niger (CAPPETTA 1987: 164) by having shorter crowns with wrinkled oral faces.

Remarks
shark-references Species-ID=3108;
valid after Case (1996) p. 9 [397];


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
Case, G.R. (1996)
A new selachian fauna from the Lower Hornestown Formation (Early Paleocene/Montian) of Monmouth County, New Jersey. Palaeontographica, Abt. A, 242(1–3), 1–14