| original |
Late Artinskian |
|
USSR(Urals) |
Dyupina,G.V. New microspores from Permian deposits of the Middle Urals. (In: Algae, Brachiopods and Miospores of Permian deposits of the Western Urals.) |
1974 |
| details |
Sakmarian |
Artinskian |
USSR(Kazakh SSR) |
Debovich,G.S. On the age and stratigraphic significance of redeposited Carboniferous spores in Lower Permian deposits of the Pre-Caspian. (In: Stratigraphy and Correlation of Sediments Using Palynology Methods. Materials IV All-Union Palynological Conference. G.N.Papulov, editor) |
1983 |
| details |
Sakmarian |
Artinskian |
USSR(Kazakh SSR) |
Dedovich,G.S. The stratigraphical importance of redeposited Carboniferous spores in Lower Permian deposits of the Caspian Depression. (In: Stratigraphy and Correlation of Sediments Using Palynology Methods. Materials IV All-Union Palynological Conference. G.N.Papulov, editor) |
1983 |