| details |
Stephanian |
|
Poland |
Ishchenko,A.M. et al. Megaspores of the Carboniferous age and their stratigraphic importance |
1962 |
| details |
Westphalian B |
|
Poland |
DybovЎ-Jachowiczowa,S. et al. Preliminary note on revision of Carboniferous megaspores with Gula. Principles of the classification. |
1979 |
| details |
Early Mississippian |
|
Ohio |
DybovЎ-Jachowiczowa,S. et al. Preliminary note on revision of Carboniferous megaspores with Gula. Principles of the classification. |
1979 |
| details |
Stephanian |
|
Poland |
DybovЎ,S. et al. Microspores of the Upper Silesian Coal Measures. |
1957 |
| details |
Stephanian B |
|
Czechoslovakia |
Potonie,R. et al. The spore dispersae of the Rhur Carboniferous, their morphography and stratigraphy with reviews of species of other areas.Part 2 |
1956 |