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 Miocene |
Early Pliocene |
W.Germany(Rhineland) |
Thomson,P.W. et al. On the subdivision of the Tertiary top layers of the Rhineland Brown Coal in the Southern and Middle Part of the Ville-Gaben and the Erft-Graben on micropaleontological Bses |
1951 |
details |
Late Pliocene |
|
W.Germany(Hesse) |
Leschik,G. Microbotanic stratigraphic studies of the Upper Pliocene Browncoal from Buchenau (Hunfeld County). |
1951 |