| details |
Middle Siegenian |
Middle Emsian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Couvinian |
Early Givetian |
Spain |
Cramer,F.H. Plant spores from the Eifelian to Givetian Gosseletia Sandstone Formation near Canadas, Asturias, Spain. |
1969 |
| original |
Siegenian |
Emsian |
Spain |
Cramer,F.H. Palynology of Silurian and Devonian rocks in northwest Spain. |
1966 |
| original |
Late Siegenian |
Emsian |
Spain |
Cramer,F.H. Palynology of Silurian and Devonian rocks in northwest Spain. |
1966 |
| details |
Siegenian |
|
Romania |
Beju,D. Zoning and correlation of the Paleozoic of the Moesian Platform on the basis of palynoprotistological assemblages.1. |
1972 |