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Epigoniceras popetensis (Yabe) Holotype Missing Shikama, T., 1952 p. 132, pl. 28, fig. 5 Mesozoic | Mollusca : Cephalopoda Material Reports, no. 15, p. 152. |
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Epigoniceras popetensis (Yabe) Holotype Missing Shikama, T., 1964 p. 150, pl. 52, fig. 9 Mesozoic | Mollusca : Cephalopoda Material Reports, no. 15, p. 167. |
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