M 323 Ammonites (Harpoceras) bifrons, Brug = A. Walcotti, Sow.
| 実物標本 |
旧蔵ラベル |
|---|---|
 |
|
| 分類 | Animals: Mollusca: Mollusca Proper: Cephalopoda: |
| 年代 | Mesozoic Jurassic Inferior Oolite: Toarcien: |
| 産地 | |
| 文献 | Department of Science, Tokio-Daigaku, 1881: Jurassic formation. Catalogue of Histrical Geology. Mesozoic., pp. 1–38. Department of Science, Tokio-Daigaku. |
