| 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 |
Late Cretaceous |
Early Paleogene |
Africa |
Song,Z.-C. et al. Compaison of palynomorph assemblages from the Cretaceous/Tertiary boundary interval in Western Europe, Northwest Africa and South China |
1997 |