M 718 Ammonites (Amaltheus) cordatus
| 分類 | Animals: Mollusca: Mollusca Proper: Cephalopoda: |
| 年代 | Mesozoic Jurassic Upper Oolite: Oxford Series: |
| 産地 | Cunmor, Wr. Oxford |
| 文献 | Department of Science, Tokio-Daigaku, 1881: Jurassic formation. Catalogue of Histrical Geology. Mesozoic., pp. 1–38. Department of Science, Tokio-Daigaku. |
