Callorhinchus orientalis

Ota, Nishimura, Kobayashi & Moriki, 2025

Classification: Holocephali Chimaeriformes Callorhinchidae

Reference of the original description

Ota, A. & Nishimura, T. & Kobayashi, Y. & Moriki, K. (2025)
Callorhinchus orientalis sp. nov., a new callorhinchid from the Upper Cretaceous Hakobuchi Formation, Yezo Group, Hokkaido, Japan. Paleontological Research, 29, 54–63

Types
Callorhinchus orientalis
Holotype: HMG: 2013;

Images of types

Description:

Citation: Callorhinchus orientalis Ota, Nishimura, Kobayashi & Moriki, 2025: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 09/2026

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Callorhinchus orientalis Ota, Nishimura, Kobayashi & Moriki, 2025; left palatine tooth plate, holotype HMG-2013, Pankerusano-sawa Creek, Tomiuchi District, Hokkaido, northern Japan, Upper Cretaceous Hakobuchi Formation © Ota et al. (2025)

Description
Original diagnosis after Ota, Nishimura, Kobayashi & Moriki, 2025 [34364]: Palatine tooth plate bearing a single tritor and a distinct anterior projection. This plate differs from that of other species in the genus by the single tritor’s posterior margin extending toward the lingual–labial margin of the plate.

References