| original |
Eocene |
|
W.Germany(Hesse) |
Potonie,R. The microbotany of the Eocene Brown Coal of the Geiseltal. |
1934 |
| details |
Middle Eocene |
Late Eocene |
E.Germany(Potsdam) |
Krutzsch,W. Contribution to the spore-paleontology of the Pre-Upper Oligocene-Oligocene Continental and marine Tertiary sediments of Branden. |
1961 |
| details |
Eocene |
|
W.Germany(Hesse) |
Krutzsch,W. Contribution to the spore-paleontology of the Pre-Upper Oligocene-Oligocene Continental and marine Tertiary sediments of Branden. |
1961 |
| details |
Nd |
|
Nd |
Boulter,M.C. et al. A system of group names for some Tertiary pollen. |
1977 |