| details |
Artinskian |
|
USSR(Kazakh SSR) |
Stanichnikova,M.S. et al. Palynological characteristics of Permian and Carboniferous deposits of the southeast part of the Pre-Caspian Basin. (In: Palynological studies (Collected Articles) |
1976 |
| 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 |
Early Permian |
|
USSR(Urals) |
Abramova,S.A. et al. Palynological investigations of Upper Kama's potassium deposits, underlying Kungurian Salt Layers. |
1960 |