| details |
Kungurian |
Induan |
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 |
Kazanian |
USSR(Pre-Urals) |
Hart,G.F. The biostratigraphy of Permian palynofloras. |
1970 |
| details |
Early Triassic |
Late Triassic |
USSR(Komi ASSR) |
Chalyshev,V.I. et al. Biostratigraphy of the Triassic of the Pechorsk District. |
1966 |
| details |
Ufimian |
Tatarian |
USSR(Russian Platform) |
Molin,V.A. et al. Upper Permian spore-pollen assemblages of the northern Russian Platform |
1972 |
| details |
Pliensbachian |
Toarcian |
USSR(WSL) |
Medvedeva,A.M. et al. Microfossils in oils and condensates of the Jurassic deposits of West Siberia. (In: Problems of Modern Palynology. A.F.Chlonova, editor) |
1984 |