| original |
Early Permian |
Late Permian |
USSR(Pre-Urals) |
Lyuber,A.A. et al. Atlas of microspores and pollen of the Paleozoic of the USSR. |
1941 |
| details |
Early Permian |
|
USSR(Yakut ASSR) |
Aleksandrova,A.N. New data on the Coal Resources of the eastern part of the Tungusska Basin |
1959 |
| details |
Permian |
|
USSR(Siberia) |
Sivertseva,I.A. On Permian vegetation of the Soviet Union. (In: On the Methods in Paleopalynological Studies.) |
1966 |
| details |
Tatarian |
|
USSR(Nenets Nat.Okrug) |
Entsova,F.I. et al. The boundary between the Permian and Triassic in the North Pre Urals |
1974 |
| details |
Early Permian |
Late Permian |
USSR(Komi ASSR) |
Telnova,V.D. Correlation of Permian deposits of different facies in the northern part of the Cis-Urals Trough and in the Northeasern Part of the Russianp Latform. |
1974 |