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UMUT CM 24286

Paleontology Collections

Spirorbis perplanorbis (Yokoyama, 1927)

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Citation
1973.

Spirorbis perplanorbis (Yokoyama, 1927) Holotype

Oyama, K. 1973 p. 121, pl. 4, fig. 18

1954.

Spirorbis perplanorbis (Yokoyama, 1927) Holotype

Taki, I. & Oyama, K. 1954 pl. 48, fig. 14

1927.

Vermetus perplanorbis Yokoyama, 1927 Holotype

Yokoyama, M. 1927b p. 450, pl. 51, fig. 14

Condition: Present
Taxonomy:Mollusca: Gastropoda: Planorbidae:
Geologic Time:Cenozoic: Pleistocene:
Horizon:Shimosueyoshi Formation:
Locality:Kanagawa: Kohoku-ku, Yokohama: Koyasu:
Reference
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., 1927b: Mollusca from the upper Musashino of western Shimosa and southern Musashi. Journal of the Faculty of Science, Imperial University of Tokyo, Section 2, vol. 1, pt. 10, pp. 439–457, pls. 51–52. (Reference No. 0489)
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UMUT Material Reports: Citation
Ichikawa, T., 1983, no. 9, p. 152. 
Ichikawa, T., 1983, no. 9, p. 219. 
Ichikawa, T., 1983, no. 9, p. 356. 

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Yokoyama, M., 1927b:
(Reference No. 0489)
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