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Hayasaka |
1965 |
Some cephalopods in the Permian faunule of Takakura-Yama, Fukushima Prefecture, Japan (with a note on the geology of the District by Ichiro Yanagisiwa and Mamoru Nemoto).
Transactions amd Proceedings of the Palaeontological Society of Japan, new series, 57: 8-27, pl.2, 3.
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