UMUT CM 20238a

Paleontology Collections

Amaea densicostata (Yokoyama, 1920)



Amaea densicostata (Yokoyama, 1920) Paralectotype

Oyama, K. 1973 p. 28, pl. 6, fig. 29a, b


Amaea densicostata (Yokoyama, 1920) Syntype

Taki, I. & Oyama, K. 1954 pl. 6, fig. 14a, c


Scalaria (Acrilla) densicostata Yokoyama, 1920 Syntype

Yokoyama, M. 1920 p. 79, pl. 5, fig. 14a, c

Condition: Missing
Taxonomy:Mollusca: Gastropoda: Epitoniidae:
Geologic Time:Cenozoic: Pliocene:
Horizon:Kazusa Group: Koshiba Formation:
Locality:Kanagawa: Kanazawa-shiba-machi, Kanazawa-ku, Yokohama: Koshiba:
Oyama, K., 1973: Revision of Matajiro Yokoyama's type Mollusca from the Tertiary and Quaternary of the Kanto area. Palaeontological Society of Japan, Special Papers, no. 17, pp. 1–148, pls. 1–57. (Reference No. 0411)
Taki, I. and Oyama, K., 1954: Matajiro Yokoyama's the Pliocene and later faunas from the Kwanto region in Japan. Palaeontological Society of Japan, Special Papers, no. 2, pp. 1–68, pls. 1–49. (Reference No. 0441)
Yokoyama, M., 1920: Fossils from the Miura peninsula and its immediate north. Journal of the College of Science, Imperial University of Tokyo, vol. 39, art. 6, pp. 1–193, pls. 1–20. (Reference No. 0464)
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UMUT Material Reports: Citation
Ichikawa, T., 1983, no. 9, p. 121. 
Ichikawa, T., 1983, no. 9, p. 190. 
Ichikawa, T., 1983, no. 9, p. 255. 


UMUT Library
Yokoyama, M., 1920:
(Reference No. 0464)
UMUT PDF download
UTokyo Repository
Yokoyama, M., 1920:
(Reference No. 0464)
UT Repository PDF