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

Scientific name	Puzosia (?) ambigua
Author	Matsumoto, 1954
Reference	Mem. Fac. Sci., Kyushu Univ., Ser. D (Geol.), Vol. 5, No. 2, p. 78, pl. 10, figs. 2, 3
Type specimen	Holotype: UMUT MM6612 (= GT. I - 2639)
Type locality	Loc. N309d, the Naibuchi Valley, Naibuchi (= Naiba) district, south Sakhalin, Russia (ca. 142^33'E, 47^18'N)
Formation name	Unit Mho, Miho Group
Age	Cenomanian, Upper Cretaceous
Remarks	Remarks: Matsumoto (1988, p. 98) regarded this species as a junior synonym of Austiniceras austeni (Sharpe, 1855). / Reference: Matsumoto, T., 1988. Palaeont. Soc. Jap. Spec. Paps., No. 30, 1 - 179, figs. 1 - 88.