| details |
Middle Miocene |
Late Miocene |
USSR(Ukrainian SSR) |
Michelis,A.A. The Neogene spore and pollen complexes of the Donez Basin |
1972 |
| details |
Middle Oligocene |
Late Oligocene |
USSR(Ukrainian SSR) |
Mikhelis,A.A. et al. The fossil pollen and their significance for stratigraphy of the Paleogene-Neogene desposits of Donbass. |
1974 |
| details |
Late Eocene |
Middle Oligocene |
USSR(Ukrainian SSR) |
Mikhelis,A.A. et al. The age and correlation of Naglinok of the Dniepr Territory near Kiev from palynological data |
1975 |
| details |
Early Eocene |
Middle Eocene |
USSR(Rostov) |
Mikhelis,A.A. Characteristic of pollen and spores and separation of Paleogene sections of the Azov Massive |
1976 |
| details |
Late Eocene |
|
USSR(Ukrainian SSR) |
Zosimovich,V.Y. et al. The boundary between Upper Eocene and Oligocene in the Kiev Dnieper area as based on palynological data. |
1979 |
| details |
Middle Oligocene |
|
USSR(Ukrainian SSR) |
Blank,M.Y. et al. On Upper Eocene and Oligocene Formations of the north-eastern Ukraine. |
1980 |
| details |
Late Oligocene |
|
USSR(Kazakh SSR) |
Panova,L.A. et al. Palynostratigraphy of Paleogene deposits. (In: Practical Palynostratigraphy. L.A. Panova et al, editors) |
1990 |