| details |
Early Triassic |
Middle Triassic |
USSR(Kazakh SSR) |
Varyukhina,L.M. Comparison of the Triassic spore assemblages of the northeast of the European part of the USSR with the Coeval assemblages of other regions. |
1974 |
| details |
Ufimian |
|
USSR(Komi ASSR) |
Varyukhina,L.M. On the palynological characteristics of Ufimian deposits of the Pechorsk Synclise. (In: The Phanerozoic of the Northern European Part of the USSR.) |
1980 |
| details |
Ufimian |
Tatarian |
USSR(Russian Platform) |
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 |
Middle Carboniferous |
|
USSR(Siberia) |
Vashchenko,E.M. et al. New data on the stratigraphy of the Carboniferous deposits on the Northeast Margin of the Tunguska Synclise |
1982 |