Diademodus utahensis

Ginter, 2008


Classification: Elasmobranchii Phoebodontiformes Phoebodontidae

Reference of the original description
Ginter, M. (2008)
Devonian filter-feeding sharks. Acta Geologica Polonica, 58(2), 147–153

Types
Diademodus utahensis
Holotype: IGPUW: Ps/9/1;

Images of types

Description:


Citation: Diademodus utahensis Ginter, 2008: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 09/2026

Please send your images of "Diademodus utahensis" to info@shark-references.com

Diademodus utahensis Ginter, 2008; Late Devonian, Frasnian, Little Mile-and-a-Half Canyon, Utah © Michal Ginter

Material
Material of the first description [966]: 5 teeth

Description
Original diagnosis after Ginter, 2008 [966]: Teeth with multicuspid crowns based on the phoebodont pattern, but with more numerous intermediate cusplets (three to seven on each side) than in typical phoebodonts. All the cusps very delicate, smooth, and rounded in cross section, as in Phoebodus fastigatus. The main cusps and the larger intermediate cusplets slightly sigmoidal, with a vague lateral carina. The base trapezoidal with rounded angles, short labio-lingually, similar to that of Ph. latus, but with only faint traces of articulation devices in a form of a weak basolabial shelf and a mesio-distally elongated orolingual hump.

References
Schnetz, L. & Dunne, E.M. & Feichtinger, I. & Butler, R.J. & Coates, M.I. & Sansom, I.J. (2024)
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, 50(2), 271–284
DOI: 10.1017/pab.2024.1
Ginter, M. (2008)
Devonian filter-feeding sharks. Acta Geologica Polonica, 58(2), 147–153