| details |
Late Permian |
|
USSR(Siberia) |
Troshkova,G.N. et al. Upper Permian spore-pollen complexes of the Southwestern Part of the Tungusk Coal Basin. |
1969 |
| details |
Ufimian |
Early Kazanian |
USSR(Russian Platform) |
Molin,V.A. et al. Upper Permian spore-pollen assemblages of the northern Russian Platform |
1972 |
| details |
Ufimian |
|
USSR(Russian Platform) |
Molin,V.A. et al. Upper Permian spore-pollen assemblages of the northern Russian Platform |
1972 |
| original |
Permian |
|
USSR(Evenki Nat.Okrug) |
Medvedeva,A.M. Stratigraphic subdivision of lower horizons of the Tunguska Series by spore-pollen analysis. |
1960 |