Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6448236 | Cretaceous Research | 2014 | 8 Pages |
Abstract
The new non-marine bivalve species Nippononaia (Martinsonella) tamurai sp. nov. is described from the Upper Formation of the Mifune Group in Kumamoto Prefecture, Southwest Japan. The specimens originally were identified as Plicatounio (Plicatounio) B sp. by Tamura (1990). The subgenus Nippononaia (Martinsonella) previously was only reported from China, and this is the first record from Japan. The Upper Formation of the Mifune Group is of Late Cenomanian to Early Turonian age, as indicated by ammonites. “Nippononaia” (?) obsoleta Hase, 1960 from the Shiohama Formation of Yamaguchi, Japan, and Plicatounio (s.l.) A sp. of Tamura (1990) from strata northeast of Geoncheonri, South Korea, are re-assigned to Nippononaia (Martinsonella). These occurrences may be of significance for the inter-regional correlation of non-marine Cretaceous strata.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Palaeontology
Authors
Jin-hua Chen, Frank Stiller,