Coptothyris grayi (Davidson)
| 1954. | Coptothyris grayi (Davidson) Taki, I. & Oyama, K. 1954 pl. 37, fig. 11 |
| 1922. | Eudesia grayi (Davidson) Yokoyama, M. 1922a p. 199, pl. 17, fig. 11 |
| Condition: | Present |
| Taxonomy: | Brachiopoda: |
| Geologic Time: | Cenozoic: |
| 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., 1922a: Fossils from the upper Musashino of Kazusa and Shimosa. Journal of the College of Science, Imperial University of Tokyo, vol. 44, art. 1, pp. 1–200 + i–viii, pls. 1–17. (Reference No. 0465) |
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| Ichikawa, T., 1983, no. 9, p. 211. |
| Ichikawa, T., 1983, no. 9, p. 280. |
