3D digital model database TYPE SPECIMENS of Cretaceous ammonoid in Japan
| Scientific name | Calycoceras orientale | |
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| Author | Matsumoto, Saito and Fukada, 1957 | |
| Reference | Mem. Fac. Sci., Kyushu Univ., Ser. D (Geol.), Vol. 6, No. 1, p. 16, pl. 5, fig. 1a - c | |
| Type specimen | Holotype: UMUT MM5657 (= GT. I - 3168) | |
| Type locality | Loc. T711b, Nionosawa Creek, Saku area, Nakagawa Town, Teshio Province, northern Hokkaido (142^01'15" E, 44^46'31" N) | |
| Formation name | Middle Yezo Group | |
| Age | Middle Cenomanian, Upper Cretaceous | |
| Remarks | ||