| details |
Late Tournaisian |
Early Visean |
Czechoslovakia |
Bajanik,S. et al. Stratigraphic position of Lower Part of Ochtina Formation between Magnezitovce and Magura |
1985 |
| details |
Westphalian C |
|
USSR(Rostov) |
Egorov,A.I. et al. Spores and pollen of Middle Carboniferous deposits of the Don Basin. |
1971 |
| details |
Visean |
|
USSR(Ukrainian SSR) |
Ishchenko,A.M. Spore and pollen analysis of the Lower Carboniferous deposits of the Dnieper-Donets Basin. |
1958 |
| original |
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 |