| details |
Westphalian A |
Westphalian C |
Belgium |
Pi©rart,P. Synopsis of megaspores of the Belgian Westphalian |
1963 |
| details |
Westphalian A |
Westphalian C |
Belgium |
Pi©rart,P. Synopsis of megaspores of the Belgian Westphalian |
1963 |
| details |
Westphalian B |
Westphalian C |
Belgium |
Pi©rart,P. Synopsis of megaspores of the Belgian Westphalian |
1963 |
| details |
Namurian |
Westphalian C |
France(Pas-de-Calais) |
Carette,J. et al. Spores of the Bruay Stratum in the western part of the Coal Basin of the North and of Pas-de-Calais. |
1961 |
| 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 |
Late Westphalian C |
|
Belgium |
Pi©rart,P. Palynology and stratigraphy of the Neeroeteren Zone, (Upper Westphalian C), in the Belgian Kempen. |
1958 |
| details |
Namurian |
Westphalian |
Belgium |
Pi©rart,P. Utilization of megaspores in Coal stratigraphy. |
1958 |
| details |
Namurian |
|
Arctic Ocean |
Forbes,C.L. et al. Palaeontological evidence for the age of the Carboniferous and Permian rocks of Central Vestspitsbergen. |
1958 |
| details |
Nd |
|
Nd |
Potonie,R. Position of the Paleozoic spore genera in the natural system. |
1954 |