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Ehiro & Bando |
1985 |
Late Permian ammonoids from the Southern Kitakami Massif, Northeast Japan.
Transactions and Proceedings of the Palaeontological Society of Japan, N.S., 137: 25-49, fig.1-9, tab.1-8, pl.5-7; Tokyo.
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Mabuti |
1935 |
On the occurrence of Stacheoceras in the Kitakami Mountainland, Northeast Honsyu, Japan.
Saito Ho-on Kai Museum, Research Bulletin, 6: 143-149, pl.14.
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