| details |
Westphalian A |
Westphalian B |
USSR(Kazakh SSR) |
Oshurkova,M.V. Correlation of the flora from the Upper Carboniferous Stages in Karagada Basin, based on the studies of megaspores and megafossils. (In: Biostratigraphic and Paleobiofacies Studies their Practical Significance. I.E.Zanina, editor) |
1970 |
| details |
Late Carboniferous |
|
USSR(Kazakh SSR) |
Pi©rart,P. Systematics, stratigraphic and geographic distribution of Carboniferous and Permian megaspores. |
1975 |
| details |
Famennian |
|
USSR(Tula) |
Semenova,E.V. Megaspores of Paleozoic plants in some Regions of the Ukrain and Southern Voronezh area and their stratigraphic importance |
1987 |
| details |
Famennian |
|
USSR(Voronezh) |
Semenova,E.V. Megaspores of Paleozoic plants in some Regions of the Ukrain and Southern Voronezh area and their stratigraphic importance |
1987 |