| details |
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 |
Middle Frasnian |
Late Frasnian |
USSR(Baltic) |
Sorokin,V.S. Upper Frasnian Substage of the main Devonian Field. (In: Phanerozoic Stratigraphy of the Baltic States Paleontological Assemblages, Structure and Composition of Sediments. V.S.Sorokin, editor) |
1978 |
| details |
Early Carboniferous |
|
Spitsbergen |
Playford,G. Lower Carboniferous microfloras of Spitsbergen (Part Two) |
1963 |
| details |
Nd |
|
Nd |
Byvsheva,T.V. Palynological character and stratigraphical arrangement of the Bobrikov horizon as found in the Lower Carboniferous Period of the Volga-Urals Region. |
1967 |