3D digital model database TYPE SPECIMENS of Cretaceous ammonoid in Japan
| Scientific name | Yezoceras nodosum | |
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| Author | Matsumoto, 1977 | |
| Reference | Mem. Fac. Sci., Kyushu Univ., Ser D (Geol.), Vol. 23, No. 3, p. 317, pl. 45, fig. 2; pl. 46, fig. 4 | |
| Type specimen | (Holotype: NSM. PM7254 (pl. 45, fig. 2)) / (Paratype: NNSM. PM7255 (pl. 46, fig. 4)) | |
| Type locality | Loc. Ik 2156b, Pombetsu - go - no - sawa Creek, Ikushumbets area, Mikasa City, Sorachi Province, central Hokkaido (141^59'00" E, 43^14'19" N) | |
| Formation name | Upper Yezo Group | |
| Age | Coniacian, Upper Cretaceous | |
| Remarks | ||