Nipponitrigonia convexa Kobayashi
| 1957. | Nipponitrigonia convexa Kobayashi Syntype Kobayashi, T. 1957a p. 55, pl. 10, fig. 14 |
| Condition: | Missing |
| Preservation: | Plaster cast: The original specimen in the Tohoku University, Sendai |
| Taxonomy: | Mollusca: Bivalvia: Trigoniidae: |
| Geologic Time: | Mesozoic: |
| Kobayashi, T., 1957a: Nipponitrigonia and Rutitrigonia in Japan. Transactions and Proceedings of the Palaeontological Society of Japan. New Series, no. 26, pp. 51–61, pls. 10–11. (Reference No. 0149) |
 PDF in prep. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 151. |
