| 1973. | Chlamys (Chlamys) cosibensis (Yokoyama, 1911) Paralectotype Oyama, K. 1973 p. 83, pl. 32, fig. 8 |
| 1954. | Chlamys (Chlamys) cosibensis (Yokoyama) Syntype Taki, I. & Oyama, K. 1954 pl. 14, fig. 7 |
| 1952. | Chlamys cosibensis (Yokoyama) Syntype Shikama, T. 1952 p. 154, pl. 39, fig. 4 |
| 1943. | Chlamys cosibensis (Yokoyama) Syntype Shikama, T. 1943 p. 241, pl. 39, fig. 4 |
| 1920. | Pecten cosibensis Yokoyama, 1920 Syntype Yokoyama, M. 1920 p. 156, pl. 13, fig. 7 |
| 1911. | Pecten cosibensis Yokoyama, 1911 Syntype Yokoyama, M. 1911a p. 4, pl. 1, fig. 3 |
| Condition: | Present |
| Taxonomy: | Mollusca: Bivalvia: Pectinidae: |
| 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) |
| Shikama, T., 1943: A handbook of illustrated fossils from Japanese and their adjacent territories., pp. 1–282, pls. 1–46. Nippon Koubutu Syumi-no-kai, Kyoto. (in Japanese) (Reference No. 0616) |
| Shikama, T., 1952: A handbook of illustrated fossils from Japanese and their adjacent territories., pp. 1–376, pls. 1–57. Nippon Koubutu Syumi-no-kai, Kyoto. (in Japanese) (Reference No. 0617) |
| 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., 1911a: Pectens from the Koshiba Neogene. Journal of the Geological Society of Tokyo, vol. 18, no. 208, pp. 1–5, pl. 1. (Reference No. 0460) |
 |
| 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) |
  |
| Ichikawa, T., 1983, no. 9, p. 128. |
| Ichikawa, T., 1983, no. 9, p. 195. |
| Ichikawa, T., 1988, no. 15, p. 154. |
| Ichikawa, T., 1988, no. 15, p. 144. |
| Ichikawa, T., 1983, no. 9, p. 260. |
| Ichikawa, T., 1983, no. 9, p. 249. |
