| details |
Ludlovian |
Early Gedinnian |
Spain |
Rodriguez Gonzalez,R.M. Palynology of the Upper Silurian-Lower Devonian Formations of the Cantabrica Cordillera, Northeast Spain. |
1983 |
| details |
Late Gothlandian |
|
Libya |
Buret,M.B. et al. New information given by palynoplanctological study of the Sandy/Shaly Formation (Upper Silurian of Libya, Rhadames Basin). |
1986 |
| details |
Pridolian |
|
Libya |
Moreau-Benoit,A. et al. Palynology and stratigraphy of a Lower Devonian type section of eastern Sahara (Rhadames Basin, Libye) |
1988 |
| details |
Ludlovian |
Early Gedinnian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |