| details |
Late Cambrian |
|
USSR(Yaroslav) |
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 |
USSR(Russian Platform) |
Molyneux,S.G. et al. Paleozoic phytoplankton. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Late Cambrian |
|
USSR(Moscow) |
Dmitrovskaya,Y.E. New data on the Paleozoic stratigraphy in Moscow Synclise Article I Cambrian |
1988 |
| details |
Late Cambrian |
Tremadocian |
USSR(Leningrad) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| 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 |
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 |
Tremadocian |
|
USSR(Estonian SSR) |
Volkova,N.A. Acritarchs from the Upper Pakeroritskogo horizon from northern Estonia and Leningrad Oblast. (In: Paleoflora and Stratigraphy of the Phanerozoic. M.A.Akhmetev, editor) |
1989 |
| 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(Estonian SSR) |
Volkova,N.A. Acritarchs of the Desposits of the Cambrian-Ordovician boundary northern Estonia |
1989 |
| original |
Early Tremadocian |
|
USSR(Estonian SSR) |
Fatka,O. et al. Morphologic variability in two populations of Arbusculidium filamentosum (Vavrdova 1965), Vavrdova,1972. |
1999 |
| 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 |
Tremadocian |
|
Tunisia |
Vecoli,M. et al. Palynostratigraphy of Upper Cambrian-upper Ordovician intracratonic clastic sequences, North Africa. |
1999 |
| details |
Early Tremadocian |
|
Spain |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Early Tremadocian |
|
Poland |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| 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 |