| details |
Givetian |
|
USSR(Ukrainian SSR) |
Novik,E.O. Stratigraphy of the Devonian deposits of the Dnieper-Donetz Basin |
1954 |
| original |
Late Devonian |
Visean |
USSR(Ukrainian SSR) |
Ishchenko,A.M. Spore and pollen analysis of the Lower Carboniferous deposits of the Dnieper-Donets Basin. |
1958 |
| details |
Tournaisian |
|
USSR(Ukrainian SSR) |
Vosanchuk,S.S. et al. The Devonian stratigraphy of the Southern Marginal Zone of the Dneiper-Donets Basin. |
1962 |
| details |
Late Tournaisian |
|
USSR(Permsk Oblast) |
Kutukov,A.V. et al. Stratigraphy, lithology and petroliferous Carboniferous deposits in the section of the Bereznikovsk producing well. (In: Geologiya i Neftegazonoshost Severa Ural-Povolzhya. S.H.Shikhov, editor) |
1973 |
| details |
Early Carboniferous |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |