| original |
Westphalian C |
|
W.Germany(N.Rhine) |
Potonie,R. et al. Spore forms in the Agir and Bismarck Seams of the Ruhr Basin. |
1932 |
| details |
Westphalian C |
|
Germany(Rhineland) |
Ibrahim,A.C. Spore forms of the Agir horizon of the Ruhr Basin. |
1933 |
| details |
Nd |
|
Nd |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
| original |
Tournaisian |
|
Poland |
Jachowicz,A. Microflora of the Zareby Beds from the Swietokrzyskie Mountains |
1967 |
| details |
Carboniferous |
|
Poland |
Jachowicz,A. Flora of the Carboniferous:Microflora |
1972 |