Trigonia sumiyagura Kobayashi & Kaseno var.
| 1954. | Trigonia sumiyagura Kobayashi & Kaseno var. Kobayashi, T. & Mori, K. 1954 p. 170, pl. 16, fig. 5 |
| Condition: | Present |
| Taxonomy: | Mollusca: Bivalvia: Trigoniidae: |
| Geologic Time: | Mesozoic: |
| Kobayashi, T. and Mori, K., 1954: Studies on the Jurassic trigonians in Japan, Part 2. Prosogyrotrigonia and the Trigoniinae. Japanese Journal of Geology and Geography, vol. 25, nos. 3–4, pp. 155–175, pls. 15–16. (Reference No. 0200) |
 PDF in prep. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 193. |
