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UMUT CM 23136

Paleontology Collections

Alvania ( Arsenia ) akibai Yokoyama

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Citation
1958.

Alvania (Arsenia) akibai Yokoyama Syntype

Makiyama, J. 1958 pl. 46, fig. 3

1926.

Rissoa (Alvania) akibai Yokoyama, 1926 Syntype

Yokoyama, M. 1926f p. 275, pl. 34, fig. 3

Condition: Present
Taxonomy:Mollusca: Gastropoda: Rissoidae:
Geologic Time:Cenozoic: Pliocene:
Horizon:Sawane formation:
Reference
Makiyama, J., 1958: Matajiro Yokoyama's Tertiary fossils from various localities in Japan. Part 2. Palaeontological Society of Japan, Special Papers, no. 4, pp. 1–6, pls. 25–57. (Reference No. 0368)
Yokoyama, M., 1926f: Fossil shells from Sado. Journal of the Faculty of Science, Imperial University of Tokyo, Section 2, vol. 1, pt. 8, pp. 249–312, pls. 32–37. (Reference No. 0483)
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UMUT Material Reports: Citation
Ichikawa, T., 1983, no. 9, p. 52. 
Ichikawa, T., 1983, no. 9, p. 327. 

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Yokoyama, M., 1926f:
(Reference No. 0483)
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