| details |
Valanginian |
Barremian |
USSR(Siberia) |
Chlonova,A.F. et al. Changes in composition of palynological assemblages from Cretaceous deposits of the eastern part of the West Siberian Plain. |
1994 |
| details |
Berriasian |
|
USSR(Ukrainian SSR) |
Voronova,M.A. Neocomian palynoflora of the Ukraine. (In: Palynology in the USSR. A.F.Chlonova, editor) |
1988 |
| details |
Early Cretaceous |
|
Mongolian Republic |
Khosbayar,P. Lower Cretaceous coalbearing deposits of Tchoiren Depression and their paleontological characteristic. (In: Mesozoic and Cenozoic faunas of Mongolia.) |
1979 |