3D digital model database TYPE SPECIMENS of Cretaceous ammonoid in Japan

Scientific name	Cobbanoceras tanakai
Author	Matsumoto, 1965
Reference	Mem. Fac. Sci., Kyushu Univ., Ser. D (Geol.), Vol. 16, No. 3, p. 220, pl. 37 [20], fig. 3; pl. 38 [21], fig. 1; text - fig. 4 [44] - 5 [45]
Type specimen	Holotype: GK. H5522
Type locality	Loc. NH279a, the Obirashibe River, Tappu area, Obira Town, Rumoi Province, northwest Hokkaido
Formation name	Unit Uf, Upper Yezo Group
Age	Lower Santonian, Upper Cretaceous
Remarks