| details |
Recent |
|
Nd |
Potonie,R. Position of the Paleozoic spore genera in the natural system. |
1954 |
| details |
Paleozoic |
|
Nd |
Potonie,R. The spores of Palaeozoic plants in the natural (Morphologic) system |
1954 |
| details |
Carboniferous |
|
W.Germany(Saarland) |
Sen,J. Notes on the spores of four Carboniferous Lycopods |
1958 |
| details |
Carboniferous |
|
France |
Sen,J. Notes on the spores of four Carboniferous Lycopods |
1958 |
| details |
Nd |
|
Germany |
Potonie,R. Synopsis of the Sporae in situ. |
1962 |
| details |
Nd |
|
France |
Potonie,R. Synopsis of the Sporae in situ. |
1962 |