M.  Tamura, ?New subgenus of Pearl Oyster, Eopinctada, from the Cretaceous Mifune Group in Kumamoto Prefecture, Japan?, Transactions and Proceedings of the Palaeontological Society of Japan, New Series, vol. 44, pp. 147-151, 1961.

I.  Hayami, ?A systematic survey of the Mesozoic Bivalvia from Japan?, University Museum, University of Tokyo, Bulletin 10, vol. 10, 1975.

I.  Hayami, ?A systematic survey of the Mesozoic Bivalvia from Japan?, University Museum, University of Tokyo, Bulletin 10, vol. 10, 1975.

M.  Tamura, ?New subgenus of Pearl Oyster, Eopinctada, from the Cretaceous Mifune Group in Kumamoto Prefecture, Japan?, Transactions and Proceedings of the Palaeontological Society of Japan, New Series, vol. 44, pp. 147-151, 1961.