3D digital model database TYPE SPECIMENS of Cretaceous ammonoid in Japan
| Scientific name | Lytoceras imperiale | |
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| Author | Yabe, 1903 | |
| Reference | Jour. Coll. Sci., Imp. Univ. Tokyo, Vol. 18, No. 2, p. 11, pl. 2, fig. 1, pl. 4, fig. 1 | |
| Type specimen | Holotype: UMUT MM7475 (= GT. I - 173) | |
| Type locality | A cliff above the large gorge of the Ikushumbets River, Mikasa City, Sorachi Province, central Hokkaido (ca. 141^59'E, 43^15'N) | |
| Formation name | Lower Ammonite - beds (= Middle Yezo Group) | |
| Age | Albian, Lower Cretaceous | |
| Remarks | ||