| original |
Chattian |
Aquitanian |
Yugoslavia |
Weyland,H. et al. Investigations of the spore and pollen floras of some Yugoslav and Greek Brown Coals |
1958 |
| details |
Oligocene |
|
Bulgaria |
Chernyavska,S. et al. Correlation of the Old Tertiary Basins in Southwest Bulgaria on the basis of spore and pollen analysis |
1962 |
| details |
Eocene |
Oligocene |
Bulgaria |
Chernyavska,S. et al. Correlation of the Old Tertiary Basins in Southwest Bulgaria on the basis of the spore and pollen analysis. |
1964 |
| details |
Early Miocene |
|
Yugoslavia |
Pantic,N.K. et al. Palynological analysis of the Brown Coals and Lignites from the Tertiary Basin of Livno. |
1964 |
| details |
Early Miocene |
|
Yugoslavia |
Pantic,N.K. et al. Biostratigraphic analyses of the Miocene flora and fauna from the Surroundings of Uglevik. |
1964 |
| details |
Aquitanian |
|
Yugoslavia |
Sikic,L. et al. The age of the "Upper Oligocene" Brown Coal sediments in the Pregrada area (North Croatia) |
1969 |
| details |
Early Miocene |
Middle Miocene |
Yugoslavia |
Petrovic,M. et al. Biostratigraphic analysis of the fauna and flora in the area of Ugljevik |
1969 |
| details |
Middle Oligocene |
Early Miocene |
Bulgaria |
Chernyavska,S. Spore-pollen zones in certain Old Tertiary Coal bearing sediments in Bulgaria. |
1970 |
| details |
Eocene |
|
Yugoslavia |
Ercegovac,M. Paleopalynological complexes from the Eocene of eastern Majevica. |
1972 |
| details |
Oligocene |
|
Bulgaria |
Chernyavska,S. On the stratigraphy of Paleogene deposits of Bulgaria, (palynological data). |
1973 |
| details |
Early Miocene |
Middle Miocene |
Yugoslavia |
Ercegovac,M. Paleopalynological and petrographical characteristics of Kamengrad Coal |
1975 |
| details |
Middle Oligocene |
Late Oligocene |
Bulgaria |
Chernyavska,S. Palynological studies on Paleogene deposits in South Bulgaria |
1977 |
| details |
Middle Oligocene |
Miocene |
Bulgaria |
Chernyavska,S. Palynological studies on Paleogene deposits in South Bulgaria. |
1977 |
| details |
Late Oligocene |
|
Bulgaria |
Palamarev,E. et al. Study of Bulgarian Tertiary flora palaeoecological and other biostratigraphic aspects in comparison with other Europen flora |
1998 |