| details |
Kazanian |
|
USSR(Pre-Urals) |
Hart,G.F. The biostratigraphy of Permian palynofloras. |
1970 |
| details |
Carnian |
|
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 |
Artinskian |
|
USSR(Urals) |
Dyupina,G.V. Palynological characteristics of the boundry between the Artinskian and Kungurian deposits of the Central Pre-Urals. (In: Biostratigraphy of the Artinskian and Kungurian Stages of the Urals. D.M.Rauzer-Chernousova and B.I.Chuvashov, editors) |
1980 |