| details |
Oligocene |
|
USSR(Krasnoyarsk Kray) |
Kulkova,I.A. et al. New data on the palynology of Oligocene formations of the Balsko-Rybinka Basin (Lower Angara). (In: Palynology of the Cenozoic of Siberia. V.S.Volkova, editor) |
1975 |
| details |
Late Oligocene |
|
USSR(Ukrainian SSR) |
Stotland,A.B. Stratigraphic subdivision and age of Amber-bearing rocks in the northern Slope of the Ukrainian Crystalline Massif according to data of microphytofossil studies |
1990 |
| details |
Middle Oligocene |
Late Oligocene |
USSR(Ukrainian SSR) |
Zosimovich,V.Y. A boundary of Oligocene and Miocene in the Boreal Province of the East-European Platform |
1991 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(Trans-Urals) |
Li,P.F. et al. Continental deposits of the Paleogene and Neogene of the eastern Slopes of the Urals and Trans-Urals |
1967 |
| details |
Middle Oligocene |
|
USSR(Trans-Urals) |
Li,P.F. et al. Continental deposits of the Paleogene and Neogene of the eastern Slopes of the Urals and Trans-Urals |
1967 |
| details |
Late Oligocene |
|
USSR(Trans-Urals) |
Li,P.F. et al. Continental deposits of the Paleogene and Neogene of the eastern Slopes of the Urals and Trans-Urals |
1967 |
| details |
Early Miocene |
|
USSR(Kazakh SSR) |
Panova,L.A. et al. Palynostratigraphy of Neogene deposits. (In: Practical Palynostratigraphy. L.A. Panova et al, editors) |
1990 |