| details |
Tournaisian |
Visean |
USSR(European) |
Umnova,N.I. et al. Spores of the genus Densosporites (Berry) Butterworth et al, and related genera in the Lower Carboniferous of the Russian Plate. (In: Palinologicheskie issledovaniya Proterozoya i Fanerozoya neftegazonoshykh. T.V. Byvsheva, editor.) |
1980 |
| original |
Tournaisian |
|
USSR(Belorussian SSR) |
Kedo,G.I. Tournaisian spores of the Pripyat Depression and their stratigraphic significance. |
1963 |
| details |
Early Carboniferous |
|
USSR(European) |
Byvsheva,T.V. et al. Spores of the genus Denosporites (Berry) Butterworth et al., and related genera in the Lower Carboniferous of the Russian Plate. (In: Palinologicheskie issledovaniya Proterozoya i Fanerozoya neftegazonoshykh. T.V. Byvsheva, editor.) |
1980 |