Cryptogemma yokoyamai

Cryptogemma yokoyamai
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Turridae
Genus:	Cryptogemma
Species:	†C. yokoyamai
Binomial name
†Cryptogemma yokoyamai K. Oyama in Taki & Oyama, 1954
Synonyms
† Comitas yokoyamai K. Oyama, 1954

Cryptogemma yokoyamai is an extinct species of sea snail, a marine gastropod mollusc in the family Turridae.

Distribution

Fossils of this species were found in Cenozoic and Pliocene strata in Japan.

References

• 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
• 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

External links

• 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
• University Museum, University of Tokyo: Comitas yokoyamai