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Author - title
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Year
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| details | Late Eocene | Early Oligocene | Czechoslovakia(Bohemia) | Buzek,C. et al. Floristic changes around Stehlin's Grande Coupure in Central Europe. (In: Global Biological Events in Earth History. E.Knobloch and Z.Kvacek, editors) | 1990 |
| details | Middle Eocene | Early Oligocene | Alabama | Frederiksen,N.O. Mid-Tertiary climate of southeastern Unites States: The sporomorph evidence. | 1980 |
| details | Claiborne | Alabama | Gray,J. Temperate pollen genera in the Eocene, (Claiborne), flora, Alabama. | 1960 |