| original |
Early Visean |
|
USSR(Belorussian SSR) |
Kedo,G.I. Spores of the Lower Carboniferous of the Pripyat Trough, (Yasmopolyanskii Substage). (In: Paleontology and Stratigraphy of the BSSR) |
1966 |
| details |
Brigantian |
|
Poland |
Stempien,M. et al. Upper Visean (Brigantian) miospores from the eastern part of the Lublin Coal Basin (Poland), and their stratigraphical significance. |
1988 |
| details |
Late Visean |
|
USSR(Ukrainian SSR) |
Vdovenko,M.V. et al. Stratigraphic Zonal Scheme of the Early Carboniferous of the Donets Basin. |
1989 |