| details |
Permian |
|
USSR(Kazakh 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 |
| details |
Frasnian |
|
USSR(Ukrainian SSR) |
Novik,E.O. Stratigraphy of the Devonian deposits of the Dnieper-Donetz Basin |
1954 |
| details |
Middle Carboniferous |
|
USSR(Ukrainian SSR) |
Ishchenko,A.M. Atlas of microspores and pollen of the Middle Carboniferous Period in the western part of the Donets Basin. |
1952 |
| details |
Tournaisian |
Visean |
USSR(European) |
Ishchenko,A.M. Atlas of microspores and pollen of the Middle Carboniferous Period in the western part of the Donets Basin. |
1952 |