M 823 Cyrena augulata. Dkr.
| 分類 | Animals: Mollusca: Mollusca Proper: Concifera: |
| 年代 | Mesozoic Jurassic Wealden: Wealden Proper: |
| 産地 | Kirchodornberg Bietfeld. |
| 文献 | Department of Science, Tokio-Daigaku, 1881: Jurassic formation. Catalogue of Histrical Geology. Mesozoic., pp. 1–38. Department of Science, Tokio-Daigaku. |
