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

Ren Hirayama, T. Chitoku

Research output: Chapter in Book/Report/Conference proceedingChapter

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
Title of host publicationTransactions and Proceedings - Palaeontological Society of Japan
Pages597-622
Number of pages26
Volume184
Publication statusPublished - 1996
Externally publishedYes

Fingerprint

Cretaceous
new taxon
Maastrichtian
skeleton
new genus
shell
new species
family
distribution

ASJC Scopus subject areas

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

Cite this

Hirayama, R., & Chitoku, T. (1996). Family Dermochelyidae (superfamily Chelonioidea) from the Upper Cretaceous of north Japan. In Transactions and Proceedings - Palaeontological Society of Japan (Vol. 184, pp. 597-622)

Family Dermochelyidae (superfamily Chelonioidea) from the Upper Cretaceous of north Japan. / Hirayama, Ren; Chitoku, T.

Transactions and Proceedings - Palaeontological Society of Japan. Vol. 184 1996. p. 597-622.

Research output: Chapter in Book/Report/Conference proceedingChapter

Hirayama, R & Chitoku, T 1996, Family Dermochelyidae (superfamily Chelonioidea) from the Upper Cretaceous of north Japan. in Transactions and Proceedings - Palaeontological Society of Japan. vol. 184, pp. 597-622.
Hirayama R, Chitoku T. Family Dermochelyidae (superfamily Chelonioidea) from the Upper Cretaceous of north Japan. In Transactions and Proceedings - Palaeontological Society of Japan. Vol. 184. 1996. p. 597-622
Hirayama, Ren ; Chitoku, T. / Family Dermochelyidae (superfamily Chelonioidea) from the Upper Cretaceous of north Japan. Transactions and Proceedings - Palaeontological Society of Japan. Vol. 184 1996. pp. 597-622
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