| original |
Visean |
Namurian |
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 |
| details |
Namurian |
|
Poland |
Jachowicz,A. New data concerning the occurence of microspores and pollen grains in the Namurian deposits of the north-eastern part of the Upper Silesian Coal Basin. |
1964 |
| details |
Late Visean |
|
Sinai |
Said,R. et al. Some microfossils from Upper Paleozoic rocks of Western Coastal Plain of Gulf of Suez Region, Egypt. |
1969 |
| details |
Early Visean |
Middle Visean |
USSR(Urals) |
Stanichnikova,M.S. Spores and pollen. (In: Key sections and fauna of the Visean and Namurian Stages of Middle and Southern Urals) |
1978 |