Thyasira crassiuscula Yokoyama
| 1959. | Thyasira crassiuscula Yokoyama Holotype Makiyama, J. 1959 pl. 58, fig. 13 |
| 1927. | Thyasira crassiuscula Yokoyama, 1927 Holotype Yokoyama, M. 1927c p. 179, pl. 47, fig. 13 |
| Condition: | Present |
| Taxonomy: | Mollusca: Bivalvia: Thyasiridae: |
| Geologic Time: | Cenozoic: Pliocene: |
| Horizon: | Onma formation: |
| Makiyama, J., 1959: Matajiro Yokoyama's Tertiary fossils from various localities in Japan. Part 3. Palaeontological Society of Japan, Special Papers, no. 5, pp. 1–4, pls. 58–86. (Reference No. 0369) |
| Yokoyama, M., 1927c: Fossil Mollusca from Kaga. Journal of the Faculty of Science, Imperial University of Tokyo, Section 2, vol. 2, pt. 4, pp. 165–182, pls. 47–49. (Reference No. 0490) |
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| Ichikawa, T., 1983, no. 9, p. 59. |
| Ichikawa, T., 1983, no. 9, p. 363. |
