| original |
Devonian |
|
Poland |
Eisenack,A. Some plant finds in secondary deposits and some comments on the Hystrichosphere problem. |
1944 |
| details |
Early Givetian |
|
Scotland(Ross/Cromarty) |
Richardson,J.B. Spores from the Middle Old Red Sandstone of Cromarty, Scotland. |
1960 |
| details |
Devonian |
|
Poland |
Richardson,J.B. Spores from the Middle Old Red Sandstone of Cromarty, Scotland. |
1960 |
| details |
Nd |
|
Nd |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 4. Supplement to all Groups, (Turmae). |
1966 |
| details |
Emsian |
Eifelian |
W.Germany(Rhineland) |
Riegel,W. Spores from the Heisdorf, Lauch and Nohn beds (Emsian and Eifelian) of the Eifel Region, Rhineland |
1973 |