| details |
Middle Visean |
|
USSR(Permsk Oblast) |
Burilova,R.V. et al. Detailed Division of the Lower Part of the Visean Stage. (In: Type sections of the Carboniferous of the Urals.) |
1979 |
| details |
Early Carboniferous |
|
Denmark |
Bertelsen,F. A Lower Carbiferous microflora from the Orslev No. 1 borehole, Island of Falster, Denmark. |
1972 |
| details |
Early Carboniferous |
Namurian |
USSR(Kazakh SSR) |
Bannikova,I.M. et al. Spore and pollen assemblages of the Lower Carboniferous in the southeast part of Betpak-Dala. |
1976 |
| details |
Visean |
Namurian |
USSR(Kazakh SSR) |
Andreeva,E.M. et al. Palaeopalynology. (Three Volumes: Volume I: Methods. Volume II: Complexes of palynomorphs of the Precambrian-Holocene of the USSR. Volume III: Figures and Plates. Editor-I.M. Pokrovskaya) |
1966 |
| details |
Middle Carboniferous |
Late Carboniferous |
USSR(Kemerovskaya) |
Andreeva,E.M. et al. Palaeopalynology. (Three Volumes: Volume I: Methods. Volume II: Complexes of palynomorphs of the Precambrian-Holocene of the USSR. Volume III: Figures and Plates. Editor-I.M. Pokrovskaya) |
1966 |
| 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 |
| details |
Late Famennian |
Early Tournaisian |
USSR(Altai Kray) |
Akimova,Y.L. New data on the age and structure of the Middle Paleozoic Tuff-Siliceous rocks in the Southern Altai. |
1984 |