| details |
Early Permian |
|
USSR(Urals) |
Abramova,S.A. et al. Palynological investigations of Upper Kama's potassium deposits, underlying Kungurian Salt Layers. |
1960 |
| details |
Late Tatarian |
Early Triassic |
USSR(Komi ASSR) |
Chalyashev,V.I. On stratigraphy of the Upper Permian and Triassic of northern Pre-Ural |
1963 |
| details |
Late Permian |
|
USSR(Komi ASSR) |
Chalyshev,V.I. et al. The boundary of the Permian and Triassic in the Red-Colored deposits of northern Priural |
1965 |
| details |
Induan |
|
USSR(Komi ASSR) |
Chalyshev,V.I. et al. The boundary of the Permian and Triassic in the Red-Colored deposits of northern Priural |
1965 |
| details |
Early Triassic |
|
USSR(Russian Platform) |
Murakhovskaya,E.I. Lower Triassic deposits from the Semipalatinsk Region of Irtush |
1970 |
| details |
Nd |
|
Nd |
Varyukhina,L.M. Spores and pollen of the red-colored coal-bearing Permian and Triassic sediments of the northeastern part of European SSSR. |
1971 |
| details |
Nd |
|
Nd |
Varyukhina,L.M. Spores and pollen of the red-colored coal-bearing Permian and Triassic sediments of the northeastern part of European SSSR. |
1971 |
| details |
Early Kazanian |
|
USSR(Orenburg) |
Gayazova,A.L. Spore-pollen complexes from the Lower Kazanian deposits of the Orenburg District. |
1974 |