| details |
Barremian |
|
USSR(Cis-Caucasus) |
Fokina,N.I. et al. Border layers of Barremian and Aptian Stages in eastern Subcaucasus and their palynologic substantiation. |
1971 |
| details |
Paleogene |
|
China(Hupei) |
Wang,K.F. et al. Palynological assemblages of the crude oil from the Buried Hills of China and the research of the oil source |
1985 |
| details |
Paleogene |
|
China(Hupei) |
Wang,K.F. et al. Palynological assemblages of the crude oil from the Buried Hills of China and the research of the oil source |
1985 |
| details |
Early Oligocene |
|
Hungary |
Rakosi,L. The question of the Eocene/Oligocene boundary on the basis of palynological studies |
1980 |
| original |
Middle Eocene |
|
Colorado |
Wodehouse,R.P. Tertiary pollen II. The oil shales of the Eocene Green River Formation |
1933 |