| details |
Westphalian B |
Westphalian D |
Illinois |
Bharadwaj,D.C. Sporological evidence on the boundaries of the stratigraphical subdivisions in the Upper Pennsylvanian strata of Euope and North America. |
1960 |
| details |
Late Devonian |
|
Canada |
Knox,E.M. Some aspects of microspore morphology. |
1959 |
| details |
Late Devonian |
|
Europe |
Knox,E.M. Some aspects of microspore morphology. |
1959 |
| details |
Namurian |
Early Westphalian |
England(Staffordshire) |
Neves,R. Upper Carboniferous plant spore assemblages from the Gastrioceras Subcrenatum horizon, North Staffordshire. |
1958 |
| details |
Carboniferous |
|
Nd |
Remy,W. et al. Paleozoic spores obtained by the maceration of fertile ferns. |
1957 |
| details |
Stephanian B |
Stephanian C |
France(Aveyron) |
Doubinger,J. Presence of Monocolpate pollen in a Coal of the Decazeville Basin (Aveyron) |
1957 |
| details |
Nd |
|
Nd |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |
| details |
Carboniferous |
Permian |
Czechoslovakia |
KalibovЎ-KaiserovЎ,M. Palynological studies in the Coal Basins of Kladno and Rakovnik. |
1956 |
| details |
Late Devonian |
Late Virgilian |
North America |
Hoffmeister,W.S. et al. Geologic range of Paleozoic plant spores in North America |
1955 |
| details |
Early Devonian |
|
Nd |
Potonie,R. Position of the Paleozoic spore genera in the natural system. |
1954 |
| original |
Westphalian C |
|
W.Germany(N.Rhine) |
Potonie,R. et al. The genera of Paleozoic sporae dispersae and their stratigraphy. |
1954 |
| details |
Early Devonian |
|
Scotland |
Potonie,R. The spores of Palaeozoic plants in the natural (Morphologic) system |
1954 |
| details |
Nd |
|
Nd |
Potonie,R. The spores of Palaeozoic plants in the natural (Morphologic) system |
1954 |