| original |
Late Eocene |
|
Bulgaria |
Chernyavska,S. New spore and pollen species from Coal-bearing Paleogene sediments in Bulgaria. |
1970 |
| details |
Middle Oligocene |
|
Bulgaria |
Chernyavska,S. Spore-pollen zones in certain Old Tertiary Coal bearing sediments in Bulgaria. |
1970 |
| details |
Oligocene |
|
Bulgaria |
Chernyavska,S. On the stratigraphy of Paleogene deposits of Bulgaria, (palynological data). |
1973 |
| details |
Oligocene |
|
Bulgaria |
Chernyavska,S. Palynological studies on Paleogene deposits in South Bulgaria |
1977 |
| details |
Oligocene |
|
Bulgaria |
Chernyavska,S. Palynological studies on Paleogene deposits in South Bulgaria. |
1977 |
| details |
Early Danian |
|
Denmark |
Kedves,M. Palynological investigations on sediments of the Lower Danian (Fish Clay, Denmark).II. |
1980 |
| details |
Maestrichtian |
|
Hungary |
Siegl-Farkas,A. Palynostratigraphy of the Senonian from borehole Bacsalmas-1 (S.Great Hungarian Plain) |
1986 |