| original |
Middle Oligocene |
|
Europe |
Krutzsch,W. Atlas of the Middle and Upper Tertiary dispersed spores and pollen as well as microplankton of northern Middle Europe. 5. Further a Zonotrilete (Apiculate, Muronate), Zootrilete, Monolete, and Alete spores. |
1967 |
| details |
Early Oligocene |
|
Bulgaria |
Ivanov,R. et al. On the age of the Palaeogene volcanic activity in Western Bulgaria according to data of geological, petrographical and palynolgical studies.1. The Palaeogene of the Suhostrel-Pades Are. |
1971 |
| details |
Late Eocene |
|
Bulgaria |
Ivanov,R. et al. Geological, petrographical and palynological data on the age of the Palaeogene Volcanic activity in Western Bulgaria.3. ThePalogene of Mesta. |
1972 |
| details |
Early Oligocene |
|
Bulgaria |
Ivanov,R. et al. Geological, petrographical and palynological data on the age of the Palaeogene Volcanic activity in Western Bulgaria.3. ThePalogene of Mesta. |
1972 |
| details |
Eocene |
|
Bulgaria |
Chernyavska,S. On the stratigraphy of Paleogene deposits of Bulgaria, (palynological data). |
1973 |
| details |
Early Oligocene |
Middle Oligocene |
Bulgaria |
Chernyavska,S. Palynological studies on Paleogene deposits in South Bulgaria |
1977 |
| details |
Early Oligocene |
Middle Oligocene |
Bulgaria |
Chernyavska,S. Palynological studies on Paleogene deposits in South Bulgaria. |
1977 |
| details |
Early Miocene |
|
Romania |
Nicorici,E. et al. A contribution on the Lower to Middle Miocene of Coasta Cea Mare, (Cluj-Napoca). |
1979 |
| details |
Nd |
|
Nd |
Nicorici,E. et al. A contribution on the Lower to Middle Miocene of Coasta Cea Mare, (Cluj-Napoca). |
1979 |
| details |
Egerian |
Badenian |
Hungary |
Nagy,E. Sporomorphs of the Neogene in Hungary |
1985 |
| details |
Late Egerian |
Early Badenian |
Hungary |
Nagy,E. A comprehensive study of Neogene sporomorphs in Hungary |
1992 |
| details |
Late Eocene |
Middle Oligocene |
W.Germany(Rhineland) |
Nickel,B. Palynofacies and palynostratigraphy of the Pechelbronn Beds of the northern Upper Rhine Graben |
1996 |
| details |
Early Oligocene |
|
Bulgaria |
Palamarev,E. et al. Study of Bulgarian Tertiary flora palaeoecological and other biostratigraphic aspects in comparison with other Europen flora |
1998 |
| details |
Late Eocene |
Early Oligocene |
Bulgaria |
Palamarev,E. et al. Fossil flora from Paleogene sediments in the northern area of the Mesta Graben in the Western Rhodopes.II. Analysis and stratigraphic importance of the flora. |
2000 |
| details |
Early Oligocene |
|
Bulgaria |
Palamarev,E. et al. Fossil flora from Paleogene sediments in the northern area of the Mesta Graben in the Western Rhodopes. II. Analysis and stratigraphic importance of the flora. |
2000 |