| details |
Namurian A |
Westphalian |
USSR(Ukrainian SSR) |
Semichatova,S.V. et al. The Bashkirian Stage as a global stratigraphic unit. (In: The Carboniferous of the USSR. 8th International Congress of Carboniferous Stratigraphy and Geology. R.H.Wagner et al, editors) |
1979 |
| details |
Early Bashkirian |
|
USSR(Ukrainian SSR) |
Einor,O.L. et al. The Lower-Middle Carboniferous boundry. (In: The Carboniferous of the USSR. 8th International Congress of Carboniferous Stratigraphy and Geology. R.H.Wagner et al, editors) |
1979 |
| details |
Early Visean |
Middle Visean |
China(Kansu) |
Gao,L. Lower Carboniferous miospore zonation of Chouniugou Formation from Jingyuan, Gansu. |
1988 |
| details |
Serpukhovian |
|
Ukraine |
Oshurkova,M.V. et al. Palynostratigraphy of Carboniferous deposits. (In: Practical Palynostratigraphy. L.A. Panova et al, editors) |
1990 |