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

Scientific name	Hyphantoceras (?) heteromorphum
Author	Matsumoto, 1977
Reference	Mem. Fac. Sci., Kyushu Univ., Ser. D (Geol.), Vol. 23, no. 3, p. 314, pl. 47, fig. 2.
Type specimen	Holotype: NSM. PM7244
Type locality	Loc. Ik - M1 - p5, Kami - ichi - no - sawa Creek, Ikushumbets area, Mikasa City, Sorachi Province, central Hokkaido (ca. 142^02'E, 43^15'N)
Formation name	Upper Yezo Group
Age	Coniacian, Upper Cretaceous
Remarks