| original |
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 |
| details |
Early Pliocene |
|
W.Germany(Hesse) |
Krutzsch,W. Micropaleontologic (spore paleontology), investigation of the Brown Coal of the Geiseltal. |
1959 |
| details |
Middle Eocene |
|
W.Germany(Hesse) |
Krutzsch,W. Micropaleontologic (spore paleontology), investigation of the Brown Coal of the Geiseltal. |
1959 |