3D digital model database TYPE SPECIMENS of Cretaceous ammonoid in Japan
| Scientific name | Obiraceras ornatum | |
|---|---|---|
|
|
||
| Author | Matsumoto, 1975 | |
| Reference | Mem. Fac. Sci., Kyushu Univ., Ser. C (Geol.), Vol. 22, No. 2, p.151, pl. 23, fig.1 | |
| Type specimen | Holotype: GK. H5689 | |
| Type locality | Sato - no - sawa Creek (Migi - ichi - no - sawa, Migi - sawa), a tributary of the Kami - kinembetsu River, a major branch of the Obirashibe River, Tappu area, Obira Town, Rumoi Province, northwestern Hokkaido (142^02'08" E, 44^02'27" N) | |
| Formation name | Middle Yezo Group | |
| Age | Upper Turonian, Upper Cretaceous | |
| Remarks | ||