| details |
Eocene |
|
W.Germany(Hesse) |
Thomson,P.W. et al. Pollen and spores of the Middle European Tertiary. |
1953 |
| details |
Early Reuverian |
|
W.Germany(N.Rhine) |
Leschik,G. The origins of the Brown Coal of the Wetterau and its Micro-and Macroflora. |
1956 |
| details |
Early Miocene |
|
Poland |
Doktorowicz-Hrebnicka,J. Microfloristic investigations of Brown Coal at Miroslawice Gorne in Lower Silesia. |
1956 |
| details |
|
|
Germany(Rhineland) |
Potonie,R. et al. On the nomenclature and classification of the Neogene sporomorphs (Pollen and spores). on the geology of the Rhine Valle Brown Coal. 1. |
1950 |