| details |
Westphalian |
|
England |
Potonie,R. Synopsis of the Sporae in situ. |
1962 |
| details |
Westphalian |
|
England |
Potonie,R. Fossil sporae in situ. Comparison with the sporae dispersae. Addition to the synopsis of the sporae in situ. |
1965 |
| details |
Namurian |
Westphalian |
S.Ireland(Limerick) |
Galtier,J. et al. Studies of Paleozoic ferns:On the genus Corynepteris. A redescription of the type and some other European species. |
1979 |
| details |
Carboniferous |
|
England |
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 |