| original |
Early Famennian |
|
Belgium |
Stockmans,F. et al. Acritarchs of the Lower Famennian. |
1969 |
| details |
Early Llandoverian |
|
Belgium |
Martin,F. The Upper Ordovician and Lower Silurian at Deerlijk (Belgium) |
1973 |
| details |
Nd |
|
Nd |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1973 |
| details |
Early Famennian |
|
Germany(Rhineland) |
Jux,U. Phytoplankton from the Middle Upper Devonian (Nehdinian) of the Southwestern Bergisches Land, Rhenish Schiefergebirge. |
1975 |
| details |
Famennian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |