3D digital model database TYPE SPECIMENS of Cretaceous ammonoid in Japan
| Scientific name | Hourcquia pacifica | |
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| Author | Matsumoto, 1970 | |
| Reference | Mem. Fac. Sci., Kyushu Univ., Ser. C (Geol.), Vol. 20, No. 2, p. 311, pl. 49, fig. 2; text - fig. 4 | |
| Type specimen | Holotype: GK. H5203 | |
| Type locality | Near the colliery of Kawakami, south Sakhalin, Russia | |
| Formation name | Possibly Miho Group | |
| Age | Possibly Upper Turonian, Upper Cretaceous | |
| Remarks | ||