Ryugasella ryugasensis Wright & Matsumoto
| 1959. | Ryugasella ryugasensis Wright & Matsumoto Matsumoto, T. 1959b p. 169 PreviousNo: I-2862 |
| 1954. | Ryugasella ryugasensis Wright & Matsumoto Holotype Wright, C. W. & Matsumoto, T. 1954 p. 122, pl. 7, fig. 4a-d, text-fig. 13a-e PreviousNo: I-2862 |
| Condition: | Present |
| Taxonomy: | Mollusca: Cephalopoda: Ammonitida: Ancyloceratina: Turrilitoidea: Diplomoceratidae: |
| Geologic Time: | Mesozoic: Cretaceous: Late Cretaceous: |
| Horizon: | Ryugase Group ?: |
| Locality: | Russia: Sakhalin: Naibuchi (=Naiba): Loc. N18f, the Naibuchi Valley: |
| Matsumoto, T., 1959b: Upper Cretaceous ammonites of California. Part 2. Memoirs of the Faculty of Science, Kyushu University, Series D, Special Volume 1, pp. i–iii + 1–172, pls. 1–41. (Reference No. 0225) |
| 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) |
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| Wright, C. W. and Matsumoto, T., 1954: Some doubtful Cretaceous ammonite gerera from Japan and Saghalien. Memoirs of the Faculty of Science, Kyushu University, Series D, vol. 4, no. 2, pp. 107–134, pls. 7–8. (Reference No. 0319) |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 218. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 294. |
| Tanabe et al., 2000, no. 37, p. 302. |
