| details |
Late Carboniferous |
|
W.Germany(N.Rhine) |
Potonie,R. et al. The genera of Paleozoic sporae dispersae and their stratigraphy. |
1954 |
| details |
Carboniferous |
|
Michigan |
Potonie,R. et al. The genera of Paleozoic sporae dispersae and their stratigraphy. |
1954 |
| details |
Namurian A |
Namurian B |
Poland |
Horst,U. The sporae dispersae of the Namurian from Western Upper Silesia and Mahrisch-Ostrau. Stratigraphic comparison of these areas spore diagnosis. |
1955 |
| details |
Namurian A |
|
E.Germany |
Horst,U. The sporae dispersae of the Namurian from Western Upper Silesia and Mahrisch-Ostrau. Stratigraphic comparison of these areas spore diagnosis. |
1955 |
| details |
Namurian |
|
Poland |
Potonie,R. The biology of Carboniferous spores |
1955 |
| details |
Carboniferous |
|
Michigan |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |
| details |
Late Carboniferous |
|
W.Germany(N.Rhine) |
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 |
| details |
Namurian A |
|
Czechoslovakia |
DybovЎ,S. Problems of the boundary between the Namurian and Westphalian in the productive Carboniferous of Ostrava-Karvina Region |
1958 |
| details |
Namurian |
Westphalian |
Belgium |
Pi©rart,P. Utilization of megaspores in Coal stratigraphy. |
1958 |
| details |
Early Namurian A |
|
Poland |
Jachowicz,A. Spore associations and stratigraphical position of Coal Seam at Kolzlowa Gora, (Upper Silesian Basin). |
1959 |
| details |
Nd |
|
Nd |
Winslow,M.R. Upper Mississippian and Pennsylvanian megaspores and other plant microfossils from Illinois. |
1959 |
| details |
Namurian |
|
Poland |
DybovЎ,S. Megaspore associations of the Ostrava-Karvina Carboniferous |
1960 |
| details |
Late Namurian |
|
Czechoslovakia |
DybovЎ-Jachowiczowa,S. Analysis of the spore content changes in Seam No.8 of the Ludvik Shaft in the Petrswalder Mulde (Ostrava Basin) |
1960 |
| details |
Namurian |
|
Poland |
Krawczynska-Grocholska,H. The Namurian of the Nowa Ruda Basin in the light of palynological studies. |
1960 |
| details |
Late Visean |
Late Namurian |
Poland |
Krawczynska-Grocholska,H. The Namurian of the Nowa Ruda Basin in the light of palynological studies. |
1960 |
| details |
Visean |
|
USSR(Ukrainian SSR) |
Ishchenko,A.M. et al. Megaspores of the Carboniferous age and their stratigraphic importance |
1962 |
| details |
|
|
N.Ireland |
Chaloner,W.G. A Sporangiostrobus with Densosporites microspores |
1962 |