| details |
Early Carboniferous |
Late Carboniferous |
China |
Kremp,G.O.W. The occurrence of important plant spore species in European, North American, Chinese, Australian and Brazilian Coal Basins. |
1955 |
| details |
Early Carboniferous |
Late Carboniferous |
North America |
Kremp,G.O.W. The occurrence of important plant spore species in European, North American, Chinese, Australian and Brazilian Coal Basins. |
1955 |
| details |
Late Devonian |
Early Permian |
North America |
Hoffmeister,W.S. et al. Geologic range of Paleozoic plant spores in North America |
1955 |
| details |
Carboniferous |
|
Indiana |
Felix,C.J. Spores of Arborescent Lycopods |
1954 |
| details |
Nd |
|
Nd |
Potonie,R. Position of the Paleozoic spore genera in the natural system. |
1954 |
| details |
Pottsville |
Conemaugh |
USA(Appalachian Bn.) |
Cross,A.T. et al. Microfossil floras of the Upper Carboniferous Coals of eastern United States (Appalachian Basin) |
1954 |
| details |
Desmoinesian |
|
Iowa |
Potonie,R. et al. The genera of Paleozoic sporae dispersae and their stratigraphy. |
1954 |
| details |
Late Devonian |
|
Nd |
Potonie,R. The spores of Palaeozoic plants in the natural (Morphologic) system |
1954 |
| details |
Paleozoic |
|
Nd |
Potonie,R. The spores of Palaeozoic plants in the natural (Morphologic) system |
1954 |
| details |
Middle Westphalian B |
|
W.Germany(Niedersachsen) |
Kremp,G.O.W. The More detailed age of some Carboniferous Coal Rubble of the Niedersachsischen Basin based on its microflora. |
1953 |
| details |
Zechstein |
|
Austria |
Klaus,W. On the spore diagnosis of the German Zechstein Salt and the Alpine Saltdomes. |
1953 |
| details |
Westphalian A |
Westphalian C |
England |
Chaloner,W.G. On the megaspores of four species of Lepidostrobus |
1953 |
| details |
Westphalian A |
Westphalian C |
Michigan |
Chaloner,W.G. On the megaspores of four species of Lepidostrobus |
1953 |
| details |
Westphalian A |
Westphalian C |
Scotland(Lanark) |
Chaloner,W.G. On the megaspores of four species of Lepidostrobus |
1953 |
| details |
Westphalian B |
|
Scotland(Lanark) |
Chaloner,W.G. On the megaspores of four species of Lepidostrobus |
1953 |
| details |
Pennsylvanian |
|
Canada(Nova Scotia) |
Wilson,L.R. The plant microfossils of the Joggins section, a progress report. |
1952 |
| details |
Late Mississippian |
Westphalian D |
Pennsylvania |
Cross,A.T. et al. Representative microfossil floras of some Appalachian Coals |
1952 |