| details |
Westphalian |
|
France |
Halle,T.G. The structure of certain fossil spore-bearing organs believed to belong to the Pteridosperms. |
1933 |
| details |
Westphalian |
|
W.Germany(Saarland) |
Florin,R. On the morphology of the pollen grains in some Palaeozoic Pteridosperms. |
1937 |
| details |
Nd |
|
Nd |
Potonie,R. Position of the Paleozoic spore genera in the natural system. |
1954 |
| details |
Westphalian D |
|
China(Liaoning) |
Imgrund,R. Dispersed spores of the Kaiping Basin, their paleontologic and stratigraphic comparison with the Upper Carboniferous of the Ruhr area and the Pennsylvanian of Illinois. |
1960 |
| details |
Westphalian |
|
Germany |
Potonie,R. Synopsis of the Sporae in situ. |
1962 |
| details |
Nd |
|
Nd |
Potonie,R. New phylogenetic facts on fossil spores. |
1967 |
| details |
Carboniferous |
|
France(Paris Basin) |
Laveine,J.P. In Situ sporomorphs of some Carboniferous Parispermeae (Neuropterideae). |
1971 |
| details |
Carboniferous |
|
Germany |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |