| details |
Middle Oligocene |
Late Oligocene |
E.Germany |
Krutzsch,W. Eocene spore stratigraphy: Table 2. (Stratigraphic classification of spores from Upper Tertiary in North Central Europe.) |
1966 |
| details |
Eocene |
|
Europe |
Krutzsch,W. The stratigraphicly useful spore and pollen forms of the Middle European Lower Tertiary |
1967 |
| details |
Late Paleocene |
|
North America |
Kedves,M. et al. About paleophytogeographic regions of the Cretaceous and of the Paleogene, according to palynologic data. |
1968 |
| details |
Middle Eocene |
|
Europe |
Kedves,M. et al. About paleophytogeographic regions of the Cretaceous and of the Paleogene, according to palynologic data. |
1968 |