"Turritella" tokunagai Yokoyama
| 1964. | "Turritella" tokunagai Yokoyama Syntype Shikama, T. 1964 p. 100, pl. 27, fig. 26 |
| 1957. | Turritella tokunagai Yokoyama Syntype Makiyama, J. 1957 pl. 11, fig. 10 |
| 1924. | Turritella tokunagai Yokoyama, 1924 Syntype Yokoyama, M. 1924b p. 10, pl. 1, fig. 10 |
| Condition: | Missing |
| Taxonomy: | Mollusca: Gastropoda: Turritellidae: |
| Geologic Time: | Cenozoic: |
| Makiyama, J., 1957: Matajiro Yokoyama's Tertiary fossils from various localities in Japan. Part 1. Palaeontological Society of Japan, Special Papers, no. 3, pp. 1–4, pls. 1–24. (Reference No. 0367) |
| Shikama, T., 1964a: Index fossils of Japan., pp. 1–287, pls. 1–80. Asakura Shoten, Tokyo. (in Japanese) (Reference No. 0618) |
| Yokoyama, M., 1924b: Molluscan remains from the lowest part of the Jo-ban coal-field. Journal of the College of Science, Imperial University of Tokyo, vol. 45, art. 3, pp. 1–22, pls. 1–5. (Reference No. 0472) |
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| Ichikawa, T., 1988, no. 15, p. 173. |
| Ichikawa, T., 1983, no. 9, p. 40. |
| Ichikawa, T., 1983, no. 9, p. 302. |
