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

Scientific name
Author	Matsumoto, 1975
Reference	Mem. Fac. Sci., Kyushu Univ., Ser. D (Geol.), Vol. 22, No. 2, p. 124, pl. 15, fig. 3
Type specimen	Holotype: GK. H5690
Type locality	A river gravel at loc. Ik 1420p, in the Kami - ichi - no - sawa Creek, a branch of the Ikushumbets River, Ikushumbets area, Mikasa City, Sorachi Province, central Hokkaido (142^01'58" E, 43^15'04" N)
Formation name	Mikasa Formation, Middle Yezo Group
Age	Middle or Upper Turonian, Upper Cretaceous
Remarks