| details |
Early Miocene |
|
Germany(Hesse) |
Thiergart,F. Micropaleontological information. 3. Occurrence of hystrichospheres in the Lower Miocene Brown Coal of Finkenhee near Frankfurt on the Oder River. |
1942 |
| details |
Late Neogene |
|
Romania |
Thiergart,F. Pollen analysis of the Service of Brown Coal research. |
1940 |
| details |
Middle Eocene |
Late Pliocene |
E.Germany |
Kirchheimer,F. Comments in regard to the botanical classification of pollen of the Browncoal Layers. |
1938 |
| details |
Tertiary |
|
Nd |
Bode,H. Pollen analysis of Brown Coal |
1931 |