Heterotrigonia subovalis (Jimbo)
| 1957. | Heterotrigonia subovalis (Jimbo) Nakano, M. 1957 p. 118, pl. 8, fig. 15 |
| Condition: | Present |
| Taxonomy: | Mollusca: Bivalvia: Trigoniidae: |
| Geologic Time: | Mesozoic: |
| Nakano, M., 1957: On the Cretaceous pennatae trigonians in Japan. Japanese Journal of Geology and Geography, vol. 28, nos. 1–3, pp. 107–120, pls. 8–9. (Reference No. 0243) |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 232. |
