Orthoceras seihekiense Kobayashi
| 1952. | Orthoceras seihekiense Kobayashi Holotype Shikama, T. 1952 p. 84, pl. 4, fig. 2a-c |
| 1943. | Orthoceras seihekiense Kobayashi Holotype Shikama, T. 1943 p. 148, pl. 4, fig. 2a-c |
| 1934. | Orthoceras seihekiense Kobayashi Holotype Kobayashi, T. 1934b p. 405, pl. 17, figs. 1-5 |
| Condition: | Present |
| Taxonomy: | Mollusca: Cephalopoda: |
| Geologic Time: | Paleozoic: |
| Kobayashi, T., 1934b: The Cambro-Ordovician formations and faunas of south Chosen. Palaeontology. Part 1. Middle Ordovician faunas. Journal of the Faculty of Science, Imperial University of Tokyo, Section 2, vol. 3, pt. 8, pp. 329–519, pls. 1–44. (Reference No. 0084) |
 |
| Shikama, T., 1943: A handbook of illustrated fossils from Japanese and their adjacent territories., pp. 1–279, pls. 1–46. Nippon Koubutu Syumi-no-kai, Kyoto. (in Japanese) (Reference No. 0616) |
| Shikama, T., 1952: A handbook of illustrated fossils from Japanese and their adjacent territories., pp. 1–376, pls. 1–57. Nippon Koubutu Syumi-no-kai, Kyoto. (in Japanese) (Reference No. 0617) |
| Ichikawa, T., 1988, no. 15, p. 147. |
| Ichikawa, T., 1988, no. 15, p. 139. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 82. |
