original |
Early Cambrian |
Middle Cambrian |
S.Ireland |
Gardiner,P.R.R. et al. Cambrian and Ordovician microfossils from south-east Ireland and their implications. |
1971 |
original |
Early Domerian |
|
Portugal |
Davies,E.H. The miospore and dinoflagellate cyst Oppel-Zonation of the Lias of Portugal |
1985 |
original |
Llandoverian |
Early Pridolian |
Austria |
Priewalder,H. Acritarchs of the Silurian of the Cellon section (Karnische Alpen, Austria). |
1987 |
original |
Telychian |
|
Sweden |
Le H©riss©,A. Acritarchs and cysts of Prasinophycean algae of the Silurian of Gotland, Sweden. |
1989 |
original |
Pridolian |
Gedinnian |
Libya |
Tekbali,A.O. et al. Silurian spores, acritarchs and chitinozoans from the Bani Walid Borehole of the Ghadamis Basin, Northwest Libya. (In: The Geology of Libya. M.J.Salem et al, editors) |
1991 |