| original |
Permian |
|
USSR(Evenki Nat.Okrug) |
Medvedeva,A.M. Stratigraphic subdivision of lower horizons of the Tunguska Series by spore-pollen analysis. |
1960 |
| details |
Tatarian |
|
USSR(Far East) |
Hart,G.F. The biostratigraphy of Permian palynofloras. |
1970 |
| details |
Late Permian |
|
USSR(Yakut ASSR) |
Petrova,E.K. Palynological characteristics of Permian deposits of the Central Vilyuysk area. (In: Palynological characteristics of the Paleozoic, Mesozoic and Cenozoic deposits of Vakutia. A.I.Tomskayiya and V.F.Vozin, editors) |
1971 |