3D digital model database TYPE SPECIMENS of Cretaceous ammonoid in Japan
| Scientific name | Tragodesmoceroides subcostatus | |
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| Author | Matsumoto, 1954 | |
| Reference | T. Matsumoto (editor): The Cretaceous System in the Japanese Islands, Jap. Soc. Prom. Sci., Tokyo, p. 263, pl. 4, fig. 1a, b | |
| Type specimen | Holotype: UMUT MM6718 (= GT. I - 3087) | |
| Type locality | Loc. T680, an outcrop in the lowest stream of the Abeshinai River, Abeshinai - Saku area, Nakagawa Town, Teshio Province, northern Hokkaido (142^02'44" E, 44^44'02" N) | |
| Formation name | Saku Formation, Middle Yezo Group | |
| Age | Turonian, Upper Cretaceous | |
| Remarks | ||