| details |
Middle Cambrian |
Tremadocian |
Spain |
Fombella,M.A. Acritarchs of the Oville Formation, Middle Cambrian-Tremadocian age, Province of Leon, Spain. |
1978 |
| details |
Late Cambrian |
Tremadocian |
France(Lot-et-Garonne) |
Baudelot,S. et al. Paleozoic basins hidden under the Aquitaine: Micropaleontological study of core collected during petroleum investigations. (In: Program of deep geology of France first phase of investigation-1983-1984) |
1984 |
| details |
Middle Cambrian |
Tremadocian |
Spain |
Fombella Blanco,M.A. Palynological determination of the Tremadocian in locality of Verdiago, Leon Province, the North of Spain |
1982 |
| details |
Early Cambrian |
Middle Cambrian |
Turkey |
Dean,W.T. et al. Precambrian and Cambrian stratigraphy of the Penbegli-Tut Inlie Southern Turkey |
1997 |
| details |
Middle Cambrian |
Late Cambrian |
USSR(Estonian SSR) |
Volkova,N.A. The age of the Ulgazek Series at the Cambrian - Ordovician contact in Estonia. |
1982 |
| details |
Middle Cambrian |
Late Cambrian |
Poland |
Moczydlowska,M. Cambrian acritarchs from Upper Silesia, Poland: Biochronology and tectonic implications. |
1998 |
| details |
Middle Cambrian |
Early Tremadocian |
Spain |
Fombella,M.A. Palynology of the Oville Formation, north and south Cantabrian Mountains. |
1978 |
| details |
Late Arenigian |
Early Llandoverian |
USSR(Estonian SSR) |
Uutela,A. et al. Ordovician acritarchs from the Rapla borehole, Estonia |
1991 |
| details |
Early Paleozoic |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |
| details |
Middle Cambrian |
|
Turkey |
Erkmen,U. et al. Cambrian acritarchs from the Sosink Formation in southeast Turkey. |
1981 |
| details |
Middle Cambrian |
|
Canada(Newfoundland) |
Anderson,M.M. Discussion: Algal remains from the Ramdom Formation (Late Precambrian) of Newfoundland, Canada. (Reply - A.C.Nautiyal). |
1984 |
| details |
Middle Cambrian |
|
Ireland |
Smith,D.G. Progress in Irish Lower Palaeozoic palynology. |
1981 |
| details |
Tremadocian |
|
Spain |
Fombella Blanco,M.A. Chitinizoa of the Tremadocian Oville Formation, Leon Province. |
1983 |
| details |
Late Cambrian |
|
Belgium |
Martin,F. Cambrian-Ordovician acritarchs of the Massif du Brabant, Belgium. |
1975 |
| details |
Middle Cambrian |
|
Norway |
Welsch,M. The stratigraphic importance of selected acritarchs from the sediments of the Digermul Group (Middle Cambrian to Tremadoc) Finnmark, North Norway |
1984 |
| details |
Middle Cambrian |
|
USSR(Yaroslav) |
Volkova,N.A. Acritarchs of the Middle and Upper Cambrian in the Moscow Syncline |
1980 |
| details |
Middle Cambrian |
|
USSR(Yaroslav) |
Volkova,N.A. Acritarchs of the Middle and Upper Cambrian in the Moscow Syncline |
1980 |