Calyptraea ( Calyptraea ) yokoyamai Kuroda in Fujita, 1929
| 1973. | Calyptraea (Calyptraea) yokoyamai Kuroda in Fujita, 1929 Oyama, K. 1973 p. 33, pl. 8, fig. 3a-c |
| 1954. | Calyptraea (Calyptraea) yokoyamai Kuroda Taki, I. & Oyama, K. 1954 pl. 5, fig. 5a-c |
| 1920. | Calyptraea mammilaris (Broderip) Yokoyama, M. 1920 p. 75, pl. 4, fig. 5a-c |
| Condition: | Present |
| Taxonomy: | Mollusca: Gastropoda: Crepidulidae: |
| Geologic Time: | Cenozoic: Pleistocene: |
| Horizon: | Miyata Formation: |
| Locality: | Kanagawa: Miura: Kami-Miyata: |
| 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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| Ichikawa, T., 1983, no. 9, p. 121. |
| Ichikawa, T., 1983, no. 9, p. 189. |
| Ichikawa, T., 1983, no. 9, p. 254. |
