3D digital model database TYPE SPECIMENS of Cretaceous ammonoid in Japan
| Scientific name | Pseudobarroisiceras nagaoi | |
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| Author | Shimizu, 1932 | |
| Reference | Jap. Jour. Geol. Geogr., Vol. 10, p. 1, pl. 1, fig. 1 - 2, 4 - 8 | |
| Type specimen | Holotype: IGPS 49432 (= now registered as IGPS. 36853) | |
| Type locality | Lower course of the Wakkawenbetsu Creek, a tributary of the Abeshinai River, Abeshina - Saku area, Nakagawa Town, Teshio Province, northern Hokkaido (ca. 142^03'E, 44^38'N) | |
| Formation name | Middle Abeshinai Group (= Upper Yezo Group) | |
| Age | Senonian, Upper Cretaceous | |
| Remarks | ||