| details |
Eocene |
Early Oligocene |
USSR(Kazakh SSR) |
Rzhanikova,L.N. Palynological description of Paleogene and Neogene deposits in the Zaisan Basin |
1968 |
| details |
Danian |
Early Oligocene |
USSR(Mountain Altai) |
Rosenberg,L.I. On stratigraphy of Cenozoic (Preglacial) deposits of Upland Altai |
1973 |
| details |
Late Eocene |
Early Oligocene |
Kazakstan |
Krasheninnikov,V.A. et al. Analysis of biotical, climatic and geological events at the Eocene - Oligocene boundary. Terrestrial flora. (In: Late Eocene-Early Oligocene geological and Biotical events on the Territory of the Former Soviet Union.Part 2: the regional geology of the Upper Eocene and Lower Oligocene. V.A.Krasheninnikov and M.A.Akhmetiev, editors) |
1996 |
| details |
Eocene |
|
USSR |
Pokrovskaya,I.M. Pollen analysis |
1958 |