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From
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To
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Geolocation
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Author - title
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Year
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| details | Oligocene | USSR(Pavlodarskaya) | Zaklinskaya,E.D. Material on the history of the flora and vegetation of the Paleogene of northern Kazakhstan in the area of Pavlodar Pr-Irtish. | 1953 | |
| details | Late Pliocene | W.Germany(Hesse) | Leschik,G. Microbotanic stratigraphic studies of the Upper Pliocene Browncoal from Buchenau (Hunfeld County). | 1951 |