| details |
Olenikian |
|
Barents Sea |
Mиrk,A. et al. Triassic rocks in Svalblard, the Arctic Soviet Islands and the Barents Shelf: Bearing on their correlations. (In: Arctic Geology and Petroleum Potential. T.O.Vorren et al, editors) |
1993 |
| details |
Kungurian |
Ufimian |
USSR(Permsk Oblast) |
Sivertseva,I.A. The spore-pollen complexes of the Kungurian and Ufimian Stages of the Solikamian Region |
1969 |
| details |
Late Permian |
|
USSR(Komi ASSR) |
Molin,V.A. et al. Palynological characteristic of the Ufimsk deposits in Western Pritiman |
1967 |
| details |
Permian |
|
USSR(Urals) |
Zauer,V.V. The Permian flora of Solikamsk |
1965 |