P 811 Productus Oequicostatus.
分類 | Animals: Mollusca: Molluscoida: Brachiopoda: |
年代 | Paleozoic Carboniferous Coal Measures: |
産地 | Illinois. |
文献 | Department of Science, Tokio-Daigaku, 1881: Carboniferous formation. Catalogue of Histrical Geology. Palaeozoic., pp. 1–18. Department of Science, Tokio-Daigaku. |