P 798 Annularia Calamtoidea.
分類 | Plants: |
年代 | Paleozoic Carboniferous Coal Measures: |
産地 | Ill. |
文献 | Department of Science, Tokio-Daigaku, 1881: Carboniferous formation. Catalogue of Histrical Geology. Palaeozoic., pp. 1–18. Department of Science, Tokio-Daigaku. |