| 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 |
Early Miocene |
|
Germany(Rhineland) |
Rein,U. The peripheral and central seam Formations of the Tertiary Syncline in the Lower Rhine Basin. |
1951 |
| details |
Early Miocene |
|
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 |