| details |
Early Oligocene |
|
USSR(Pre-Baltic) |
Pokrovskaya,I.M. Eocene and Lower Oligocene spore-pollen complexes of the Prebaltic. (In: Atlas of Upper Cretaceous, Paleocene and of the USSR). |
1960 |
| details |
Middle Eocene |
Late Eocene |
USSR(Kalinin) |
Pokrovskaya,I.M. et al. Palynological basis of the age of the Baltic Amber-bearing deposits |
1960 |
| details |
Late Pannonian |
|
Hungary |
Nagy,E. Palynological investigations of the Upper Pannonian Brown Coal in the Foot Hills of the Matra Mountains. |
1958 |
| details |
Late Pannonian |
|
Hungary |
Nagy,E. Pollen research of the Upper Pannonian Brown Coal Layers of the Matra Mountains. |
1957 |
| details |
Early Tertiary |
|
Japan(Hokkaido I.) |
Tokunaga,S. Pollen analyses of some coal seams in the Akabira area, Ishikari Coal Field, Hokkaido |
1956 |
| details |
Late Cretaceous |
Paleocene |
Europe |
Thiergart,F. The stratigraphic value of Mesozoic pollen and spores |
1949 |