| details |
Middle Carboniferous |
Early Artinskian |
USSR(Urals) |
Chuvashov,B.I. et al. The Upper Paleozoic in the Region of Biserti Settlement. (In: Upper Paleozoic Terrigenous Deposits of the Urals.) |
1970 |
| details |
Ufimian |
Tatarian |
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 |
Kazanian |
Tatarian |
USSR(Permsk Oblast) |
Egorova,V.N. Kazanian spore-pollen complex Kamskoye-Meshinskogo Interfluve. (In: Biostratigraphy and Paleontology of Paleozoic Deposits of the Eastern Part of the Russian Platform and Western Priuralye. A.K.Gusev, editor) |
1970 |
| details |
Ufimian |
Tatarian |
USSR(Russian Platform) |
Molin,V.A. et al. Upper Permian spore-pollen assemblages of the northern Russian Platform |
1972 |
| details |
Tatarian |
|
USSR(Arkhangelsk Oblast) |
Yefremov,I.V. et al. Tatarian sequence on the coast of Cheshskaya Bay |
1972 |
| details |
Tatarian |
|
USSR(Komi ASSR) |
Yefremov,I.V. et al. Tatarian sequences on the coast of Cheshskaya Bay. |
1972 |