| details |
Nd |
|
Nd |
Potonie,R. Synopsis of the Sporae in situ. |
1962 |
| details |
Middle Desmoinesian |
|
Illinois |
Pfefferkorn,H.W. et al. Some fern-like fructifications and their spores from the Mazon Creek compression flora of Illinois (Pennsylvanian). |
1971 |
| details |
Nd |
|
Nd |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Carboniferous |
|
France |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Namurian |
Stephanian C |
Slovakia |
Vozarova,A. Late Carboniferous to Early Permian time interval in the West Carpathians: northern Tethys Margin |
1998 |