Nipponitrigonia sagawai (Yehara)
| 1975. | Nipponitrigonia sagawai (Yehara) Tamura, M. 1975e pl. J-11, fig. 14 |
| 1964. | Nipponitrigonia sagawai (Yehara) Shikama, T. 1964 p. 130, pl. 42, fig. 16 |
| 1957. | Nipponitrigonia sagawai (Yehara) Kobayashi, T. 1957a p. 53, pl. 10, fig. 5 |
| Condition: | Present |
| 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. |
| Shikama, T., 1964a: Index fossils of Japan., pp. 1–287, pls. 1–80. Asakura Shoten, Tokyo. (in Japanese) (Reference No. 0618) |
| Tamura, M., 1975e: Mesozoic molluscan fossils of Japan, 1 (Early and Middle Jurassic trigonioid bivalves). Atlas of Japanese fossils, no. 42-251, 4 pp., pl. J-11. Tsukiji Shokan Publishing Co., Ltd., Tokyo. (in Japanese) (Reference No. 0627) |
| Ichikawa, T., 1988, no. 15, p. 190. |
| Ichikawa, T., 1988, no. 15, p. 161. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 151. |
