Koizumi, I. (1972). Marine diatom flora of the Pliocene Tatsunokuchi formation in the Fukushima Prefecture. Transactions and Proceedings of the Palaeontological Society of Japan, 86: 340-359, pls 42-43
270196
Koizumi, I.
1972
Marine diatom flora of the Pliocene Tatsunokuchi formation in the Fukushima Prefecture
Transactions and Proceedings of the Palaeontological Society of Japan