Myophorella ( Promyophorella ) sigmoidalis Kobayashi & Tamura
| 1955. | Myophorella (Promyophorella) sigmoidalis Kobayashi & Tamura Paratype Kobayashi, T. & Tamura, M. 1955 p. 96, pl. 5, fig. 2 |
| Condition: | Present |
| Taxonomy: | Mollusca: Bivalvia: Trigoniidae: |
| Geologic Time: | Mesozoic: |
| Kobayashi, T. and Tamura, M., 1955: The Myophorellinae from north Japan. Studies on the Jurassic trigonians in Japan, Part 4. Japanese Journal of Geology and Geography, vol. 26, nos. 1–2, pp. 89–103, pls. 5–6. (Reference No. 0208) |
 PDF in prep. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 202. |
