| original |
Middle Triassic |
Late Triassic |
USSR(Urals) |
Varyukhina,L.M. Some new species of spores and pollen from the Permian and Triassic of the northern Pre-Urals. (In: Stratigraphy and Paleontology of the Northeastern part of European USSR) |
1966 |
| original |
Middle Triassic |
Late Triassic |
USSR(Pre-Urals) |
Varyukhina,L.M. Some new species of spores and pollen of the Permian and Triassic of northern Priural. |
1966 |
| 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 |
Ladinian |
Norian |
Barents Sea |
Mиrk,A. et al. Triassic rocks in Svalblard, the Arctic Soviet Islands and the Barents Shelf: Bearing on their correlations. (In: Arctic Geology and Petroleum Potential. T.O.Vorren et al, editors) |
1993 |