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Ehiro, Shimoyama & Murata |
1986 |
Some Permian Cyclolobaceae from the Southern Kitakami Massif, Northeast Japan.
Transactions and Proceedings of the Palaeontological Society of Japan, N.S., 142: 400-408, fig.1-4, pl.79-80; Tokyo.
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Murata & Bando |
1975 |
Discovery of Late Permian Araxoceras from the Toyoma Formation in the Kitakami Massif, Northeast Japan.
Transactions and Proceedings of the Palaeontological Society of Japan, N.S., 97: 22-31, fig.1-6; Tokyo.
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