Polyptychoceras ( Subptychoceras ) sp.
| 1963. | Polyptychoceras (Subptychoceras) sp. Matsumoto, T. 1963 p. 45, pl. 66, fig. 6 PreviousNo: I-128 |
| 1894. | Hamites sp. Jimbo, K. 1894 p. 185, pl. 7, fig. 6 PreviousNo: I-128 |
| Condition: | Present |
| Taxonomy: | Mollusca: Cephalopoda: Ammonitida: Ancyloceratina: Turrilitoidea: Diplomoceratidae: |
| Geologic Time: | Mesozoic: Cretaceous: Late Cretaceous: Turonian - Campanian: |
| Horizon: | Upper Yezo Group: |
| Locality: | Japan: Hokkaido: Ishikari: The Yubai, above the gorge near the colliery: |
| Jimbo, K., 1894: Beiträge zur Kenntniss der Fauna der Kreideformation von Hokkaido. Palaeontologische Abhandlungen, Neue Folge, Bd. 2, H. 3, pp. 149–194, pls. 1–9. (Reference No. 0062) |
 |
| Matsumoto, T., 1963: A survey of the fossils from Japan illustrated in classical monographs. Part 10. Kotora Jimbo (1894): Beiträge zur Kenntniss der Fauna der Kreideformation von Hokkaido. Palaeontological Society of Japan, 25th Anniversary Volume, pp. 41–48, pls. 60–68. (Reference No. 0226) |
| Tanabe, K., Ito, Y., Moriya, K. and Sasaki, T., 2000: Database of Cretaceous ammonite specimens registered in the Department of Historical Geology and Paleontology of the University Museum, University of Tokyo. The University Museum, The University of Tokyo, Material Reports, no. 37, pp. i–iv + 1–509. (Reference No. 0879) |
| |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 221. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 54. |
| Tanabe et al., 2000, no. 37, p. 286. |
