| details |
Early Miocene |
Middle Pliocene |
Germany |
Rein,U. Pollen analysis of middle European Brown Coal occurrences of the Miocene |
1956 |
| details |
Early Pliocene |
Middle Pliocene |
Poland |
Doktorowicz-Hrebnicka,J. Index pollen spectra of Pliocene Coal-bearing sediments. |
1956 |
| details |
Oligocene |
|
W.Germany(Hesse) |
Murriger,F. et al. Dating of a Hessische Brown Coal by pollen analysis. |
1955 |
| details |
Oligocene |
|
W.Germany(Hesse) |
Murriger,F. et al. Dating of a Hessische Brown Coal by pollen analysis. |
1955 |
| details |
Late Pliocene |
|
W.Germany(Schleswig) |
Weyl,R. et al. The age of the Kaolin Sands from Sylt |
1955 |