| details |
Late Cambrian |
Tremadocian |
Canada(Newfoundland) |
Martin,F. Some aspects of Late Cambrian and Early Ordovician acritarchs. |
1982 |
| details |
Cambrian |
Tremadocian |
Belgium |
Herbosch,A. et al. Study of the lithostratigraphic, biostratigraphic and sedimentology of the Lessines borehole (Southern Boarder of the Brabant Massive, Belgium) |
1991 |
| details |
Late Cambrian |
Tremadocian |
USSR(Estonian SSR) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| details |
Late Cambrian |
Tremadocian |
USSR(Estonian SSR) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| details |
Late Cambrian |
Tremadocian |
USSR(Leningrad) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| details |
Late Cambrian |
Tremadocian |
USSR(Yaroslav) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| details |
Late Cambrian |
Ordovician |
Canada(Newfoundland) |
Molyneux,S.G. et al. Paleozoic phytoplankton. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Late Cambrian |
Ordovician |
USSR(Russian Platform) |
Molyneux,S.G. et al. Paleozoic phytoplankton. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Middle Cambrian |
Late 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 |
Late Cambrian |
Early Tremadocian |
Canada(Newfoundland) |
Parsons,M.G. et al. Three new assemblages of acritarchs from Late Upper Cambrian to Early Tremadocian rocks of Random Island, Trinity Bay, Eastern Newfoundland. |
1986 |
| details |
Late Cambrian |
Early Tremadocian |
USSR(Estonian SSR) |
Volkova,N.A. Phytoplankton and acritarch research of Cambrian-Ordovician deposits of the Baltic Region |
1995 |
| details |
Late Cambrian |
Early Tremadocian |
USSR(Leningrad) |
Volkova,N.A. Phytoplankton and acritarch research of Cambrian-Ordovician deposits of the Baltic Region |
1995 |
| details |
Late Cambrian |
Early Tremadocian |
USSR(Arkhangelsk Oblast) |
Volkova,N.A. Phytoplankton and acritarch research of Cambrian-Ordovician deposits of the Baltic Region |
1995 |
| details |
Late Cambrian |
Early Tremadocian |
USSR(Estonian SSR) |
Volkova,N.A. Acritarchs of the Desposits of the Cambrian-Ordovician boundary northern Estonia |
1989 |
| details |
Late Cambrian |
Early Tremadocian |
Canada(Newfoundland) |
Parsons,M.G. et al. Acritarch microfloral succession from the Late Cambrian and Ordovician (Early Tremadoc) of Random Island, Eastern Newfoundland, and its comparison to coeval microfloras, particularly those of the Eastern European Platform. |
2000 |
| details |
Late Arenigian |
Early Llanvirnian |
Czechoslovakia |
VavrdovЎ,M. Nethromorphitae and some other acritarchs from the Bohemian Lower Ordovician |
1978 |
| details |
Tremadocian |
Arenigian |
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 |