Family Dermochelyidae (superfamily Chelonioidea) from the Upper Cretaceous of north Japan

R. Hirayama, T. Chitoku

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Mesodermochelys undulatus, a new genus and species, is described as the best Mesozoic representative of the Dermochelyidae (order Testudines, superfamily Chelonioidea). This new taxon is described from 15 specimens which include cranial fragments, lower jaw, axial and appendicular skeleton, and a nearly complete shell. These specimens were collected from the Lower Maastrichtian, Upper Cretaceous of Hobetsu-cho, Central Hokkaido, North Japan. Frequent occurrence of this primitive dermochelyid in the Upper Cretaceous of Japan suggests endemic distribution among Mesozoic chelonioid species.

Original languageEnglish
Pages (from-to)597-622
Number of pages26
JournalTransactions and Proceedings - Palaeontological Society of Japan
Volume184
Publication statusPublished - 1996 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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