| details |
Namurian C |
Westphalian C |
Poland |
Chaloner,W.G. On Spencerisporites, gen.nov., and Spencerisporites karezewskii, (Zerndt), the isolated spores of Spencerites insignis (Scott). |
1951 |
| details |
Westphalian A |
Westphalian D |
England |
Chaloner,W.G. On Spencerisporites, gen.nov., and Spencerisporites karezewskii, (Zerndt), the isolated spores of Spencerites insignis (Scott). |
1951 |
| details |
Nd |
|
Nd |
Winslow,M.R. Upper Mississippian and Pennsylvanian megaspores and other plant microfossils from Illinois. |
1959 |
| details |
Permian |
|
Turkey |
Yahsiman,K. et al. Permian megaspores from Hazru (Diyarbakir). |
1959 |
| details |
Late Morrowan |
|
Oklahoma |
Felix,C.J. et al. An American occurrence of Spencerisporites. |
1959 |
| details |
Late Morrowan |
|
Texas |
Felix,C.J. et al. An American occurrence of Spencerisporites. |
1959 |
| details |
Namurian A |
Westphalian D |
Turkey |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Namurian A |
Westphalian D |
Poland |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Namurian A |
Westphalian D |
Netherlands |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Late Carboniferous |
|
Poland |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Langsettian |
|
England(Yorkshire) |
Thomas,B.A. Upper Carboniferous Herbaceous Lycopsids |
1997 |