Nakamura, M. (1940). An interesting pecten from the Nanakita Beds, Nenosiroisi-mura , Miyagi-gun, Miyagi-ken. Transactions and Proceedings of the Palaeontological Society of Japan, 18: 37-38(263-264), text-fig. 1.
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Nakamura, M.
1940
An interesting pecten from the Nanakita Beds, Nenosiroisi-mura , Miyagi-gun, Miyagi-ken
Transactions and Proceedings of the Palaeontological Society of Japan