| link
|
From
|
To
|
Geolocation
|
Author - title
|
Year
|
|---|---|---|---|---|---|
| details | Nd | Nd | Thiergart,F. Pollen analysis of the Service of Brown Coal research. | 1940 | |
| details | Pliocene | W.Germany(Baden) | Wolff,H. Microfossils of the Pliocene Brown Coal from the Freigericht Mine near Dettingenam and comparison with older layers of the Tertiary as Sowie as post-Tertiary deposits. | 1934 | |
| original | Miocene | W.Germany(N.Rhine) | Potonie,R. et al. Microbotany of Miocene Brown Coal from the Niederrheinische Bucht | 1934 |