Tentaculites gyracanthus (Eaton)
| 1966. | Tentaculites gyracanthus (Eaton) Masutomi, K. & Hamada, T. 1966 p. 43, pl. 22, fig. 4 |
| Condition: | Missing |
| Geologic Time: | Paleozoic: |
| Masutomi, K. and Hamada, T., 1966: Fossils in colour., pp. i–x + 1–268, pls. 1–96. Hoikusha Publishing Co., Ltd., Osaka. (in Japanese) (Reference No. 0576) |
| Ichikawa, T., 1988, no. 15, p. 98. |
