| details |
Cenomanian |
|
USSR(WSL) |
Mchedlishvili,N.D. et al. Mesozoic and Cenozoic plants Common to the northern and Southern Hemispheres |
1965 |
| details |
Barremian |
|
USSR(Yamalo-Nenets) |
Popovicheva,L.V. et al. Stratigraphy and correlation of Cretaceous Petroleum deposits of the Polui-Yamal Region |
1981 |
| details |
Aptian |
|
USSR(Ukrainian SSR) |
Voronova,M.A. On stratigraphical position and paleogeographical importance of the Sphagnumsporites, Raatz, genus spores |
1972 |
| details |
Aptian |
|
USSR(Nenets Nat.Okrug) |
Gryazeva,A.S. Palynological basis for the stratigraphy of Lower Cretaceous deposits of the Pechorsk Basin. (In: Mikrofitofossilii v neftyanoi geologii. N. A. Timoshina, editor) |
1980 |
| details |
Aptian |
|
USSR(Nenets Nat.Okrug) |
Gryazeva,A.S. Palynological basis for the stratigraphy of Lower Cretaceous deposits of the Pechorsk Basin. (In: Mikrofitofossilii v neftyanoi geologii. N. A. Timoshina, editor) |
1980 |
| details |
Aptian |
|
USSR(Taymyr Nat.Okrug) |
Chirva,S.A. et al. Structure and correlation of continental Early Cretaceous Massive of northern Siberia. (In: Stratigraphy of the Lower Cretaceous deposits in the Petroleum and Gas bearing Regions of the USSR. M.S.Mesezhnikov and A.I.Kirichkova) |
1979 |
| details |
Aptian |
|
USSR(Taymyr Nat.Okrug) |
Chirva,S.A. et al. Structure and correlation of continental Early Cretaceous Massive of northern Siberia. (In: Stratigraphy of the Lower Cretaceous deposits in the Petroleum and Gas bearing Regions of the USSR. M.S.Mesezhnikov and A.I.Kirichkova) |
1979 |
| details |
Aptian |
Paleocene |
USSR(WSL) |
Drozhashchikh,N.B. et al. Sphagnaceae. (In: Pyltsa i spory zapadnoi Sibiri, yura-paleotsen. S.R.Samoilovich and N.D.Mtchedlishvili, editors) |
1961 |
| details |
Albian |
|
USSR(Yamalo-Nenets) |
Popovicheva,L.V. et al. Stratigraphy and correlation of Cretaceous Petroleum deposits of the Polui-Yamal Region |
1981 |
| details |
Albian |
|
USSR(Nenets Nat.Okrug) |
Gryazeva,A.S. Palynological basis for the stratigraphy of Lower Cretaceous deposits of the Pechorsk Basin. (In: Mikrofitofossilii v neftyanoi geologii. N. A. Timoshina, editor) |
1980 |