3D digital model database TYPE SPECIMENS of Cretaceous ammonoid in Japan
| Scientific name | Prionocycloceras sigmoidale | |
|---|---|---|
|
|
||
| Author | Matsumoto, 1965 | |
| Reference | Mem. Fac. Sci., Kyushu Univ., Ser. C (Geol.), Vol. 16, No. 1, p. 41, pl. 9, fig. 1; text - fig. 17 | |
| Type specimen | Holotype: GK. H5435 | |
| Type locality | Loc. 2001 of T. Muramoto, Ban - no - sawa Creek, a tributary of the Ikushumbets River, Ikushumbets area, Mikasa City, Sorachi province, central Hokkaido (ca. 141^59'E, 43^13'N) | |
| Formation name | Unit IIIb, Upper Yezo Group | |
| Age | Turonian, Upper Cretaceous | |
| Remarks | ||