| 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 |
Early Oligocene |
Middle Oligocene |
USSR(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 Oligocene |
Middle Oligocene |
USSR(Kazakh SSR) |
Abuzyarova,R.Y. New data on the Paleogene flora of Shintuz-Saya (Central Kazakhstan). |
1971 |
| original |
Early Oligocene |
Middle Oligocene |
USSR(Siberia) |
Andreeva,E.M. et al. Palaeopalynology. (Three Volumes: Volume I: Methods. Volume II: Complexes of palynomorphs of the Precambrian-Holocene of the USSR. Volume III: Figures and Plates. Editor-I.M. Pokrovskaya) |
1966 |
| details |
Early Oligocene |
|
Russia(Caucasus) |
Zaporozhets,N.I. Lower Oligocene palynology and phytoplankton of the northern Caucasus |
1993 |
| details |
Early Eocene |
Early Oligocene |
USSR(Primorsk Kray) |
Baskakova,L.A. Phytostratigraphy dismembering of the Paleogene deposits of the South-West of Primorski Kray |
1982 |
| details |
Early Eocene |
Late Eocene |
USSR(Yaroslav) |
Kuznetsova,T.A. Palynological criteria of correlation and stratigraphic separation of Paleogene deposits in the Volga Region. |
1973 |