Heterocyathus sp.
| 1959. | Heterocyathus sp. Makiyama, J. 1959 pl. 61, fig. 6 |
| 1927. | Heterocyathus sp. Yokoyama, M. 1927d p. 189, pl. 50, fig. 6 |
| Condition: | Missing |
| Taxonomy: | Cnidaria: |
| Geologic Time: | Cenozoic: |
| 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., 1927d: Tertiary fossils from western Hizen. Journal of the Faculty of Science, Imperial University of Tokyo, Section 2, vol. 2, pt. 4, pp. 183–190, pl. 50. (Reference No. 0491) |
 |
| Ichikawa, T., 1983, no. 9, p. 59. |
| Ichikawa, T., 1983, no. 9, p. 367. |
