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From
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Geolocation
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Author - title
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Year
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| details | Middle 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 Oligocene | Germany(Brandenburg) | Mai,D.H. Contributions to the flora of the Middle Oligocene Calau Beds I Brandenburg, Germany | 1998 |