3D digital model database TYPE SPECIMENS of Cretaceous ammonoid in Japan
| Scientific name | Crioceras ishiwarai | |
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| Author | Yabe and Shimizu, 1925 | |
| Reference | Jap. Jour. Geol. Geogr., Vol. 4, Nos. 3 - 4, p. 85, pl. 5; text - figs. 1, 2 | |
| Type specimen | Holotype: unnumbered specimen at Institute of Geology and Paleontology, Tohoku University | |
| Type locality | Shiraito - hama, Oshima Island, Kesennuma City, Miyagi Prefecture, Pacific coast of northeast Honshu (ca. 141^37'E, 38^52'N) | |
| Formation name | Oshima Formation | |
| Age | Hauterivian - Barremian, Lower Cretaceous | |
| Remarks | ||