| details |
Late Oligocene |
Early Miocene |
USSR(European) |
Korallova,V.V. Palynological boundary of Oligocene and Miocene deposits of the Southern European part of the USSR. |
1980 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(Ukrainian SSR) |
Blank,M.Y. et al. On Upper Eocene and Oligocene Formations of the north-eastern Ukraine. |
1980 |
| details |
Late Eocene |
Early Oligocene |
USSR(Siberia) |
Strepetova,Z.V. et al. The Cenozoic reference section of Yano-Omoloiskoe Interfluve |
1981 |
| details |
Eocene |
Oligocene |
Norway |
Zaklinskaya,E.D. et al. Palynological studies of samples from Sites 336,338,345,346,348 |
1982 |
| details |
Oligocene |
|
USSR(Primorsk Kray) |
Gromova,I.S. Palynological characteristics of the coal layers of the Kainozoisk Region Rettikhovki (South Primorsk). (In: Spores and pollen of Phanerozoic deposits. L.A. Panova et al, editors) |
1984 |
| details |
Early Oligocene |
|
USSR(Ukrainian SSR) |
Stotland,A.B. On the stratigraphic position of the Khar'kovsk series in the Kiev Pre-Dnieper |
1985 |
| details |
Late Oligocene |
|
USSR(Khanty-Mansiysk) |
Volkova,V.S. et al. Palynological characteristic and stratigraphy of Cainozoic deposits from Khanty-Mansijsk area. (In: Mikrofitofossilii i stratigrafiya Mezozzoya i Kainozoya Sibiri. S.B. Shatskiy, editor) |
1988 |
| details |
Late Oligocene |
Early Miocene |
USSR(Siberia) |
Kolykhalov,Y.M. et al. Paleogene and Noegene deposits in the Southwest Chulym-Yenisei Basin. (In: The Cenozoic of Siberia and Northeastern USSR. V.S.Zykina.editor) |
1989 |
| 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 |
Oligocene |
|
Kyrgyzstan |
Turdukulov,A.T. et al. Region XIV. Kyrgyzstan. (In: Late Eocene - Early Oligocene Geological and Biotical Events on the Territory of the Former Soviet Union. Part 1: The Regional Geology of the Upper Eocene and Lower Oligocene. V.A.Krasheninnikov and M.A.Akhmetiev, editors) |
1996 |
| details |
Eocene |
Miocene |
Russia(Tatar ASSR) |
Lopatina,D.A. Palynological Assemblages and Macrofloras from Eocene-Miocene Deposits of the Tatar Strait Coast (Eastern Sikhote Alin). |
2001 |
| details |
Paleogene |
|
Russia(Novosibirsk) |
|
2004 |