| original |
Early Visean |
Middle Visean |
USSR(Ukrainian SSR) |
Ishchenko,A.M. Spores and pollen of Lower Carboniferous deposits of the Western extension of the Donetz Basin and their values for stratigraphy. |
1956 |
| original |
Visean |
|
USSR(Ukrainian SSR) |
Ishchenko,A.M. Spore and pollen analysis of the Lower Carboniferous deposits of the Dnieper-Donets Basin. |
1958 |
| 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 |
| details |
Middle Visean |
Late Visean |
USSR(European) |
Umnova,N.I. Palynological characteristics of Visean deposits of the Central Region of the Russian Plate. (In: Palinologicheskie issledovaniya Proterozoya i Fanerozoya neftegazonoshykh. T.V. Byvsheva, editor.) |
1980 |
| details |
Visean |
|
USSR(Belorussian SSR) |
Kedo,G.I. New and little-studied species of spores in Carboniferous deposits of Belorussia. (In: New and Little known species of fossil animals and plants of Belorussia. R.G.Garetskii, S.F.Zubovich, V.I. Pushkin, editor) |
1986 |