| details |
Tournaisian |
|
USSR(Urals) |
Burilova,R.V. et al. Spore-pollen assemblages. (In: Paleontological Atlas, Carboniferous Deposits of the Urals.) |
1975 |
| details |
Tournaisian |
|
USSR(Urals) |
Burilova,R.V. et al. Spore-pollen assemblages. (In: Paleontological Atlas, Carboniferous Deposits of the Urals.) |
1975 |
| details |
Early Visean |
|
USSR(Urals) |
Ananiev,A.R. et al. Stratigraphy of the Coal-bearing Lower Carboniferous of the eastern Slope of the Urals. (In: Paleontological Characteristics of the Main Subdivisions of the Carboniferous.) |
1979 |