| details |
Ufimian |
Kazanian |
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 |
Nd |
|
Nd |
Boersma,M. et al. Triassic palynomorphs, index to genera and species |
1987 |
| details |
Middle Triassic |
Late Triassic |
USSR(European) |
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 |
Middle Triassic |
Rhaetian |
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 |
Early Permian |
|
USSR(Yakut ASSR) |
Golubeva,I.I. Breakdown and correlation of Permian deposits according to data of deep boreholes of the Vilyui Hemisyncline |
1982 |
| details |
Carnian |
Norian |
USSR(Kazakh SSR) |
Buvalkin,A.K. et al. Triassic deposits of the Irtysh-Zaysan Fold area |
1974 |