| details |
Late Santonian |
Maastrichtian |
USSR(Taymyr Nat.Okrug) |
Samoilovich,S.R. Microphytofossils of the Upper Cretaceous of the Katansk Basin and the correlation of Late Cretaceous sediments in northern USSR. (In: Mikrofitofossilii v neftyanoi geologii. N. A. Timoshina, editor) |
1980 |
| details |
Tertiary |
|
USSR(Ukrainian SSR) |
Chepikov,K.R. New data on microfossils in the crude oils of European USSR. |
1963 |
| details |
Tertiary |
|
USSR(Moldavian SSR) |
Chepikov,K.R. New data on microfossils in the crude oils of European USSR. |
1963 |