Centrospermae sp
- Citations total:
- 3
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| details | Oligocene | USSR(Caucasus) | Chiguryaeva,A.A. Contributions to the Oligocene flora of the Maykop Formation, Caucasus (spores and pollen). | 1951 | |
| details | Late Miocene | Washington | Wolfe,J.A. Paleoclimatic significance of the Oligocene and Neogene floras of the Northwestern United States. | 1981 | |
| details | Late Miocene | Oregon | Wolfe,J.A. Paleoclimatic significance of the Oligocene and Neogene floras of the Northwestern United States. | 1981 |