Nonmarine Cretaceous Ostracods from Inner Zone of SW Japan

Abstract

In this paper, twenty-four species of nonmarine Cretaceous ostracods in 7 genera (Cypridea, Rhinocypris, Ziziphocypris, Mongolocypris, Timiriasevia, Candona and Darwinula) are described from Kitakyushu, Yamaguchi, Hiroshima, Okayama and Hida areas of SW Japan. Eighteen forms of them arc from the Lower Cretaceous rocks and 6 forms from the Upper Cretaceous. Based on their appearance, the correlation concerning Cretaceous ostracod-bearing strata between eastern China and southwestern Japan has also been discussed.