3D digital model database TYPE SPECIMENS of Cretaceous ammonoid in Japan
| Scientific name | Eomadrasites nipponicus | |
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| Author | Matsumoto, 1955 | |
| Reference | Jap. Jour. Geol. Geogr., Vol. 26, Nos. 1 - 2, p. 135, pl. 10, fig. 3 | |
| Type specimen | Holotype: GK. H1559 | |
| Type locality | A river gravel at loc. T233p, Shibunnai - toge - no - sawa Creek, Saku (Abeshinai) area, Nakagawa Town, northern Hokkaido (141^04'52" E, 44^39'39" N) | |
| Formation name | Unit IIb, Middle Yezo Group | |
| Age | Lower Cenomanian, Upper Cretaceous | |
| Remarks | ||