| details |
Early Triassic |
Late Triassic |
USSR(Komi ASSR) |
Chalyshev,V.I. et al. Biostratigraphy of the Triassic of the Pechorsk District. |
1966 |
| original |
Ufimian |
|
USSR(Urals) |
Vasileva,M.M. Results of a study of spore-pollen assemblages of Upper Permian deposits of the Aktyubinsk Region the Urals. (In: Biostratigraphy and Paleontology of Paleozoic Deposits of the Eastern Part of the Russian Platform and Western Priuralye. A.K.Gusev, editor) |
1970 |
| details |
Early Triassic |
|
USSR(Russian Platform) |
Murakhovskaya,E.I. Lower Triassic deposits from the Semipalatinsk Region of Irtush |
1970 |
| details |
Late Ladinian |
Early Carnian |
USSR(Urals) |
Tuzhikova,V.I. The age of Basel deposits of the Turin and Chelyabin series of the eastern Urals. (In: The Paleozoic and Mesozoic geology of the Urals and Transurals. Collection on the problems of stratigraphy,22.) |
1975 |
| details |
Induan |
|
USSR(Urals) |
Tuzhikova,V.I. Palynological criteria for the dating and correlation of Lower Triassic deposits of the Urals |
1981 |