| original |
Eocene |
Oligocene |
USSR |
Boytsova,E.P. et al. Miospores of some ancient plants in the USSR. |
1979 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(Georgian SSR) |
Panova,L.A. et al. Miospores and nannoplankton of Eocene-Oligocene deposits of the northern border of the Akhaltsikhskoi Depression. (In: Spores and pollen of Phanerozoic deposits. L.A. Panova et al, editors) |
1984 |
| details |
Middle Eocene |
Late Eocene |
USSR(Kazakh SSR) |
Sotnikova,M.A. et al. Stratigraphy and palynology of marine Paleogene deposits of Southern Kazakhstan. (In: Palynology in the USSR. A.F.Chlonova, editor) |
1988 |
| details |
Late Eocene |
Early Oligocene |
Tajikistan |
Davidzon,R.M. et al. Region XV. Tajikistan, (The Tadzhik Depression and Pamir). (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 |
Middle Eocene |
Middle Oligocene |
USSR |
Song,Z.-C. et al. Fossil Spores and Pollen of China. Volume 1: The Late Cretaceous and Tertiary Spores and Pollen. |
1999 |