| details |
Nd |
|
Nd |
Byvsheva,T.V. Palynological character and stratigraphical arrangement of the Bobrikov horizon as found in the Lower Carboniferous Period of the Volga-Urals Region. |
1967 |
| details |
Visean |
Namurian A |
Spitsbergen |
Playford,G. Lower Carboniferous microfloras of Spitsbergen (Part Two) |
1963 |
| details |
Late Mississippian |
Namurian A |
Canada(NWT,Mackenzie) |
Hacquebard,P.A. et al. A Carboniferous spore assemblage, in coal from the South Nahanni River area, Northwest Territories. |
1957 |
| details |
Early Carboniferous |
|
USSR(Moscow) |
Hacquebard,P.A. et al. A Carboniferous spore assemblage, in coal from the South Nahanni River area, Northwest Territories. |
1957 |