| details |
Ordovician |
|
USSR(Yaroslav) |
Umnova,N.I. Ordovician and Silurian acritarchs of the Moscow Basin and Prebaltic |
1975 |
| details |
Late Llanvirnian |
Caradocian |
USSR(Ukrainian SSR) |
Tsegelnyuk,P.D. Ordovician stratigraphy of the Southwestern Region of the Russian Platform |
1980 |
| details |
Tremadocian |
Ashgillian |
USSR(Russian Platform) |
Umnova,N.I. Silurian and Ordovician acritarch assemblages from the northern and western parts of the Russian Platform. |
1974 |
| details |
Tremadocian |
Ashgillian |
USSR(Pre-Baltic) |
Umnova,N.I. Silurian and Ordovician acritarch assemblages from the northern and western parts of the Russian Platform. |
1974 |
| details |
Llanvirnian |
|
USSR(Moscow Basin) |
Aristova,K.E. Typical assemblages of Ordovician and Silurian microfossils from the Moscow Syncline. |
1980 |
| details |
Llanvirnian |
|
USSR(European) |
Aristova,K.E. Microfossils of the Llandvirian Stage of the Moscow Synclise. (In: Palinologicheskie issledovaniya Proterozoya i Fanerozoya neftegazonoshykh. T.V. Byvsheva, editor.) |
1980 |
| details |
Middle Ordovician |
|
USSR(Estonian SSR) |
Bockelie,T.G. et al. Middle Ordovician acritarchs from the Island of Odinsholm, Estonia. |
1979 |
| details |
Tremadocian |
|
USSR(Estonian SSR) |
Aristova,K.E. Assemblages of microplant fossils of Lower and Middle Ordovician type sections of Estonia |
1976 |
| details |
Middle Ordovician |
|
USSR(Estonian SSR) |
Aristova,K.E. Assemblages of microplant fossils of Lower and Middle Ordovician type sections of Estonia |
1976 |
| details |
Middle Ordovician |
Late Ordovician |
USSR(Belorussian SSR) |
Golubtsov,V.K. Stratigraphic and paleontological research in Byelorussia. |
1978 |
| details |
Middle Ordovician |
|
Sweden |
Kjellstrжm,G. Ordovician microplankton (baltisphaerids) from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Early Ordovician |
|
Sweden |
Johansson,H.G. et al. Notes on a new locality at Ljungsbro in the Lower Ordovician of Ostergotland, Southern Sweden. |
1972 |
| details |
Middle Ordovician |
|
Sweden |
Kjellstrжm,G. Lower Viruan microplankton from a Boring in Oland, Sweden |
1972 |
| details |
Arenigian |
Llanvirnian |
Sweden |
Righi,E. Ampullula, a new acritarch genus from the Ordovician (Arenig-Llanvirn) of Oland, Sweden. |
1991 |
| details |
Ordovician |
|
Sweden |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1973 |
| details |
Middle Ordovician |
|
Sweden |
Kjellstrжm,G. Lower Viruan Middle Ordovician microplankton from the Ekon borehole No.1 in Ostergotland, Sweden. |
1976 |
| details |
Late Arenigian |
Early Llanvirnian |
Sweden |
Ribecai,C. et al. Arenigian acritarch from Horns Udde (Oland, Sweden). A preliminary report. |
1995 |