| original |
Aptian |
Turonian |
USSR(WSL) |
Krasnova,L.M. et al. Selaginellaceae. (In: Pyltsa i spory zapadnoi Sibiri, yura-paleotsen. S.R.Samoilovich and N.D.Mtchedlishvili, editors) |
1961 |
| details |
Aptian |
Albian |
USSR(WSL) |
Chlonova,A.F. Palynological characteristics of Cretaceous Layers in Siberia and the Far East. |
1971 |
| details |
Aptian |
Albian |
USSR(WSL) |
Ivanova,E.A. et al. Pollen and spores of Western Siberia; Jurassic to Paleocene. |
1961 |
| details |
Valanginian |
|
USSR(WSL) |
Mchedlishvili,N.D. Lower Cretaceous flora of the northwestern part of the Western Siberian Lowland. (In: Palynology in Petroleum Geology. N.M.Ivanova, editor) |
1971 |
| original |
Aptian |
Turonian |
USSR(Tyumenskaya Oblast) |
Krasnova,L.M. et al. Selaginellaceae. (In: Pyltsa i spory zapadnoi Sibiri, yura-paleotsen. S.R.Samoilovich and N.D.Mtchedlishvili, editors) |
1961 |