M 871 Toxaster complanatus.
分類 | Animals: Annuloida: Echinodermata: |
年代 | Mesozoic Cretaceous Lower Cretaceous: Lower Greensand: |
産地 | Gy-l' Eveque, Yonne |
文献 | Department of Science, Tokio-Daigaku, 1881: Cretaceous formation. Catalogue of Histrical Geology. Mesozoic., pp. 1–26. Department of Science, Tokio-Daigaku. |