3D digital model database TYPE SPECIMENS of Cretaceous ammonoid in Japan
| Scientific name | Acanthoceras takahashii | |
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| Author | Matsumoto, 1975 | |
| Reference | Mem. Fac. Sci., Kyushu Univ., ser. D (Geol.), Vol. 22, No. 2, p. 126, pl. 16, fig. 1 | |
| Type specimen | Holotype: GK. H5605 | |
| Type locality | Upper reaches of the Kami - ichinosawa, a tributary of the Ikushumbets River, Mikasa City, Sorachi Province, central Hokkaido (132^3'30" E, 43^16'38" N) | |
| Formation name | Unit IIb, Mikasa Formation, Middle Yezo Group | |
| Age | Middle Cenomanian, Upper Cretaceous | |
| Remarks | ||