| original |
Oligocene |
|
USSR(WSL) |
Voitsel,Z.A. Juglandaceae. (In: Pyltsa i spory zapadnoi Sibiri, yura-paleotsen. S.R.Samoilovich and N.D.Mtchedlishvili, editors) |
1961 |
| details |
Late Oligocene |
Early Miocene |
USSR(Tomskaya Oblast) |
Kulkova,I.A. Spore and pollen assemblages of Tertiary deposits in the Tomsk Region of the Ob' Valley. (In: Taxonomy and Methods for the Study of Fossl Pollen and Spores. V.N. Saks and A.F. Khlonova, editors) |
1964 |
| details |
Late Senonian |
Danian |
USSR(Siberia) |
Samoilovich,S.R. Tentative botanico-Geographical subdivision of northern Asia in Late Cretaceous time. |
1967 |
| details |
Oligocene |
|
USSR(Siberia) |
Aleksandrova,A.N. et al. Palynoflora of Central Siberia at the Eocene-Oligocene Border |
1985 |