| original |
Early Famennian |
|
Belgium |
Martin,F. Acritarchs of the Lower Famennian of Villiers-sur-Lesse (Belgium). |
1981 |
| details |
Late Frasnian |
Early Famennian |
Belgium |
Martin,F. Upper Frasnian and Lower Famennian acritarchs from the southern margin of the Dinant Basin, Ardennes, Belgium. |
1984 |
| details |
Early Famennian |
Middle Famennian |
Portugal |
Oliveira,J.T. et al. Dating the Horta da Torre Formation, a new lithostratigraphic unit of the Ferreira-Ficalho Group, South Portuguese zone: Geological consequences. |
1986 |
| details |
Early Famennian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |