| details |
Ufimian |
Tatarian |
USSR(Urals) |
Vasileva,M.M. Results of a study of spore-pollen assemblages of Upper Permian deposits of the Aktyubinsk Region the Urals. (In: Biostratigraphy and Paleontology of Paleozoic Deposits of the Eastern Part of the Russian Platform and Western Priuralye. A.K.Gusev, editor) |
1970 |
| details |
Late Permian |
|
USSR(Yakut ASSR) |
Golubeva,I.I. Breakdown and correlation of Permian deposits according to data of deep boreholes of the Vilyui Hemisyncline |
1982 |
| details |
Early Tatarian |
|
USSR(Arkhangelsk Oblast) |
Bazhenova,S.N. et al. Stratigraphy of the Tatarian Stage of the Volshoi Severnoi Duina and Usta River Interfluve |
1977 |
| details |
Sakmarian |
Artinskian |
USSR(Kazakh SSR) |
Dalyan,I.B. et al. Palynological separation of the stratigraphy of Lower Permian deposits of the eastern Border zone of the Precaspian Depression |
1977 |
| details |
Permian |
|
Arctic Ocean |
Dibner,A.F. et al. Carboniferous, Permian and Triassic spore-pollen assemblages of the Barents Sea Shelf and their geological significance. (In: Geology and mineral genesis in Arctic Region USSR. Symposium of Scientific Studies.) |
1981 |
| details |
Tatarian |
|
USSR(Nenets Nat.Okrug) |
Molin,V.A. et al. New data on the paleontological characteristics of Upper Permian deposits of the Kanin Peninsula. (In: Supporting sections of Silurian and Devonian boundary deposits of the Pripolar Urals. V.S.Tsyganko and V.A.Chermnykh, editors) |
1983 |
| details |
Norian |
Rhaetian |
Canada(NWT,Franklin) |
McGregor,D.C. Triassic, Jurassic and Lower Cretaceous spores and pollen of Arctic Canada. |
1965 |
| original |
Artinskian |
|
USSR(Urals) |
Samoilovich,S.R. Pollen and spores of Permian deposits of Cherdyn and Aktyubinsk in the Lower Urals. (In: Palaeobotanical Symposium) |
1953 |