Pa 436 Orthis occidentalis
| 分類 | Animals: Mollusca: Molluscoida: Brachiopoda:Articulata: Strophomenidae: |
| 年代 | Paleozoic Ordovician Cincinnati Group: |
| 産地 | Ohio. |
| 文献 | Department of Science, Tokio-Daigaku, 1881: Catalogue of Palaeontological Specimens. Middle Case., pp. 1–46. Department of Science, Tokio-Daigaku. |
