Celtis occidentalis
- Citations total:
- 2
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| details | Early Oligocene | Middle Oligocene | USSR(Siberia) | Lyubomirova,K.A. The vegetation of northwest Siberia in the Late Paleogene. (In: Palynology in Petroleum Geology. N.M.Ivanova, editor) | 1971 |
| details | Middle Eocene | Tennessee | Zavada,M.S. et al. Investigations of angiosperms from the Middle Eocene of North America | 1981 |