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1 July 2018 Four new species of the Jurassic to Cretaceous seep-restricted bivalve Caspiconcha and implications for the history of chemosynthetic communities
Robert G. Jenkins, Andrzej Kaim, Yoshinori Hikida, Steffen Kiel
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Abstract

Four new species of the methane seep-inhabiting kalenterid bivalve genus Caspiconcha Kelly in Kelly et al., 2000 are described: Caspiconcha basquensis from the late Albian of northern Spain, C. yubariensis from the late Albian of northern Japan, C. raukumaraensis from the late Albian to mid-Cenomanian of New Zealand, and C. lastsamurai from the Campanian of northern Japan. The earliest confirmed record of the genus is known from the latest Jurassic. It reached its maximum diversity in the Albian and declined in diversity and abundance through the Late Cretaceous. The youngest species, C. lastsamurai, is currently known from a single specimen only.

© 2018, The Paleontological Society
Robert G. Jenkins, Andrzej Kaim, Yoshinori Hikida, and Steffen Kiel "Four new species of the Jurassic to Cretaceous seep-restricted bivalve Caspiconcha and implications for the history of chemosynthetic communities," Journal of Paleontology 92(4), 596-610, (1 July 2018). https://doi.org/10.1017/jpa.2018.7
Accepted: 16 January 2018; Published: 1 July 2018
JOURNAL ARTICLE
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