| details |
Eocene |
Oligocene |
Germany |
Thiergart,F. Pollen analysis of the Service of Brown Coal research. |
1940 |
| details |
Eocene |
|
Germany |
Potonie,R. Pollen and spore forms as guide fossils of the Tertiary |
1951 |
| details |
Eocene |
|
France |
Reissinger,A. Pollen analysis extended to all sedimentary rocks of the geological past. |
1950 |
| details |
Eocene |
|
Germany |
Krutzsch,W. Stratigraphic or botanic importance of new spore and pollen forms from the German Tertiary. |
1962 |
| details |
Chattian |
|
Poland |
Romanowicz,I. Spore and pollen analysis of Tertiary sediments from the vicinity of Boleslawiec and Zebrzydowa. (In: Analiza sporowo-Pylkowa Osadow Trzeciorzedowyc H Z Okolic Boleslawca I Zebrzydowej. (In: Z Badan Trzeciorzedu W Polsce. Tom 4) |
1961 |
| details |
Aquitanian |
|
France |
Sittler,C. Evidences of Temperature Increase at the Oligocene-Miocene boundary. |
1967 |