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Kyuma & Nishida |
1987 |
Akiyoshiceras, A New Neoicoceratid Ammonoid Genus from the Upper Carboniferous of Akiyoshi.
Bulletin of the Akiyoshi-dai Museum of Natural History, 22: 23-41, 8 figs., 3 tabls., 5 pls., Shuho.
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Kyuma & Nishida |
1992 |
Welleritid Ammonoids from the Akiyoshi Limestone Group (Molluscan Paleontology of the Akiyoshi Limestone Group-IX).
Bulletin of the Akiyoshi-dai Museum of Natural History, 27: 1-21, 8 figs., 4 tabls., 8 pls., Shuho, Yamaguchi pref.
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