Grammatodon sp.
| 1960. | Grammatodon sp. Hayami, I. et al. 1960 p. 91, pl. 8, fig. 8 |
| Condition: | Present |
| Taxonomy: | Mollusca: Bivalvia: Parallelodontidae: |
| Geologic Time: | Mesozoic: |
| Hayami, I., Sugita, M. and Nagumo, Y., 1960: Pelecypods of the Upper Jurassic and Lowermost Cretaceous Shishiori group in northeast Japan. Japanese Journal of Geology and Geography, vol. 31, no. 1, pp. 85–98, pl. 8. (Reference No. 0046) |
 PDF in prep. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 41. |
