| details |
Early Olenikian |
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 |
Olenikian |
Rhaetian |
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 |
Early Triassic |
Middle Triassic |
USSR(Krasnodar Kray) |
Rimsha,L.A. et al. To the problem of stratigraphic position of Pre-Cretaceous series in Western Cis-Caucasian Territory. |
1975 |
| details |
Nd |
|
Nd |
Boersma,M. et al. Triassic palynomorphs, index to genera and species |
1987 |