Yokoyamaina ? sp.
| 1958. | Yokoyamaina ? sp. Hayami, I. 1958b p. 25, pl. 3, fig. 18 |
| Condition: | Present |
| Taxonomy: | Mollusca: Bivalvia: Cardiidae: |
| Geologic Time: | Mesozoic: |
| Hayami, I., 1958b: A review of the so-called Liassic "cyrenoids" in Japan. Studies on the Liassic pelecypods in Japan, 7. Japanese Journal of Geology and Geography, vol. 29, nos. 1–3, pp. 11–27, pls. 2–3. (Reference No. 0021) |
 PDF in prep. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 21. |
