| details |
Tremadocian |
|
England |
Warrington,G. et al. Micropalaeontological biostratigraphy of offshore samples from South-West Britain. |
1977 |
| details |
Late Cambrian |
Tremadocian |
USSR(Yaroslav) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| details |
Early Tremadocian |
|
Argentina(Jujuy) |
Vergel,M.D.M. et al. Ordovician palynomorphs of Argentina: An integrated approach. (Aspects of the Ordovician System in Argentina.) |
2002 |
| details |
Late Cambrian |
Middle Tremadocian |
Algeria |
Vecoli,M. et al. Remarks on the Cambrian-Ordovician boundary in the Algerian Sahara (Hassi-Rmel area) |
1995 |
| details |
Late Cambrian |
Early Tremadocian |
Algeria |
Vecoli,M. Stratigraphic significance of acritarchs in Cambro-Ordovician boundary strata, Hassi-Rmel area, Algerian Sahara |
1996 |
| details |
Late Cambrian |
Early Tremadocian |
Tunisia |
Vecoli,M. et al. Palynostratigraphy of Upper Cambrian-upper Ordovician intracratonic clastic sequences, North Africa. |
1999 |
| details |
Late Cambrian |
Early Tremadocian |
Algeria |
Vecoli,M. et al. Palynostratigraphy of Upper Cambrian-upper Ordovician intracratonic clastic sequences, North Africa. |
1999 |
| details |
Ashgillian |
|
Algeria |
Vecoli,M. et al. Palynostratigraphy of Upper Cambrian - Upper Ordovician intracratonic clastic sequences, North Africa. |
1998 |
| details |
Late Ashgillian |
|
Czechoslovakia |
VavrdovЎ,M. Recycled acritarchs in the Uppermost Ordovician of Bohemia |
1982 |
| details |
Late Ordovician |
|
Czechoslovakia |
VavrdovЎ,M. Further acritarchs and terrestrial plant remains from the Late Orovician at Hlasna Treban (Czechoslovakia) |
1988 |
| details |
Late Ordovician |
|
Czech Republic |
VavrdovЎ,M. Paleocommunities of Lower Palaeozoic microplankton. |
1982 |
| details |
Late Cambrian |
|
Belgium |
Vanguestaine,M. The Late Cambrian age of the Upper RN2B from the Stavelot area. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) |
1973 |
| details |
Caradocian |
Early Ashgillian |
USSR(Estonian SSR) |
Uutela,A. et al. Ordovician acritarchs from the Rapla borehole, Estonia |
1991 |
| details |
Caradocian |
|
England(Shropshire) |
Turner,R.E. Reworked acritarchs from the type section of the Ordovician Caradoc series. Shropshire. |
1982 |
| details |
Arenigian |
|
Tunisia |
Tongiorgi,M. et al. Differentiation and spread of the Baltic Acritarch Province (Arenig-Llanvirn). |
1999 |
| details |
Late Cambrian |
|
Libya |
Tawadros,E. et al. Petrography and palynology of quartzites in the Sirte Basin, central Libya. |
2001 |
| details |
Late Cambrian |
|
Libya |
Tawadros,E. et al. Petrography and palynology of quartzites in the Sirte Basin, central Libya. |
2001 |