| 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 Eocene |
Early 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 |
Oligocene |
|
USSR(Kazakh SSR) |
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 |
Oligocene |
|
USSR(Caucasus) |
Chiguryaeva,A.A. Contributions to the Oligocene flora of the Maykop Formation, Caucasus (spores and pollen). |
1951 |
| details |
Late Pliocene |
|
Netherlands |
Florschutz,F. et al. The paleobotanical boundary Pliocene-Pleistocene in the Netherlands |
1950 |
| details |
Miocene |
|
Poland |
Kremp,G.O.W. Pollen analysis of the Miocene Brown Coal Bed of Konin on the Warthe River. |
1949 |
| details |
Late Miocene |
|
Germany |
Thiergart,F. Anthoceros spores from Early Brown Coals |
1942 |