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UMUT CM 25543

古生物収蔵資料

Umbonium ? sp.

Citation
1937.

Umbonium ? sp.

Otuka, Y. 1937a

1929.

Umbonium sp.

Yokoyama, M. 1929a

Condition: Present
Taxonomy:Mollusca: Gastropoda: Trochidae:
Geologic Time:Cenozoic:
Reference
Otuka, Y., 1937a: The geologic age of the Tertiary formation near Hamada, Simane Prefecture, Japan. Japanese Journal of Geology and Geography, vol. 14, nos. 1–2, pp. 23–32, pl. 3. (Reference No. 0392)
Yokoyama, M., 1929a: Neogene shells from some provinces of Chugoku. Journal of the Faculty of Science, Imperial University of Tokyo, Section 2, vol. 2, pt. 8, pp. 363–368, pl. 70. (Reference No. 0496)
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UMUT Material Reports: Citation
Ichikawa, T., 1983, no. 9, p. 103. 
Ichikawa, T., 1983, no. 9, p. 378.