3D digital model database TYPE SPECIMENS of Cretaceous ammonoid in Japan
| Scientific name | Hamites quadrinodosus | |
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| Author | Jimbo, 1894 | |
| Reference | Palaeont. Abh., N. F., Vol. 2, No. 3, p. 185, pl. 7, fig. 3,3a | |
| Type specimen | Lectotype: UMUT MM7524 - 1 (= GT. I - 125) | |
| Type locality | Near Chupitaushunai, a left tributary of the Tonbetsu River, Kitami Province, northern Hokkaido | |
| Formation name | Upper Yezo Group | |
| Age | Turonian - Campanian, Upper Cretaceous | |
| Remarks | (= Pseudoxybeloceras quadrinodosum (Jimbo, 1894)) / Remarks: The generic position of this species was transferred to Polyptychoceras by Wright and Matsumoto (1954, p. 119). / Reference: Wright, C. W. and Matsumoto, T., 1954. Mem. Fac. Sci., Kyushu Univ., Ser. D, Vol. 4, No. 2, 107 - 134, pls. 7 - 8. [see printed matter] | |