| original |
Late Arenigian |
|
Czechoslovakia |
VavrdovЎ,M. New genera of acritarchs from the Bohemian Ordovician. |
1986 |
| original |
Late Arenigian |
|
Czechoslovakia |
VavrdovЎ,M. Nethromorphitae and some other acritarchs from the Bohemian Lower Ordovician |
1978 |
| details |
Cambrian |
|
USSR(Kazakh SSR) |
Poberezhskaya,Sh.I. Plant Microssils from Precambrian and Palaeozoic deposits of Mugodzharskaya. |
1976 |
| details |
Cambrian |
|
Poland |
Jagielska,L. Flora of the Cambrian;Microflora |
1972 |
| details |
Late Arenigian |
Early Llanvirnian |
England(Cumberland) |
Lister,T.R. et al. Microfossils from the Cleaved Skiddaw Slates of Murton Pike and Brownber (Cross Fell Inlier). |
1969 |
| details |
Tremadocian |
|
Austria |
Reitz,E. et al. Lower Ordovician acritarchs of the northern Graywacke Zone, (Eastern Alps). |
1989 |
| details |
Tremadocian |
|
England(Yorkshire) |
Lister,T.R. The method of opening, orientation and morphology of the Tremadocian acritarch, Acanthodiacrodium ubui Martin |
1970 |
| details |
Late Cambrian |
|
USSR(Leningrad) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Middle Ordovician |
|
Finland |
Tynni,R. Ordovician hystrichospheres and chitinozoans in limestone from the Bothnian Sea. |
1975 |
| details |
Late Llandoverian |
|
Canada(Quebec) |
Achab,A. Acritarchs from the Awantjish Formation (Upper Llandoverian) in the Val Brillant Borehold, Matapedia Valley, Quebec. |
1976 |
| details |
Tremadocian |
|
Poland |
Michniak,R. et al. Discovery of Lower Paleozoic formations in the eastern part of the Kielce-Lagow Synclinorium. |
1976 |
| details |
Ordovician |
|
USSR(Bashkir ASSR) |
Chibrikova,E.V. Stratigraphy of Devonian and older Paleozoic deposits of the Southern Urals and the Pre-Urals (According to plant Microfssils). |
1977 |
| details |
Tremadocian |
|
France(Aude) |
Baudelot,S. et al. Palynostratigraphic information on the Lower Paleozoic of the Massif de Mouthoumet (Hautes Corbieres, Aude). |
1977 |
| details |
Cambrian |
|
USSR(Pre-Urals) |
Timofeev,B.V. Microphytofossils of the Precambrian and Cambrian of northern Eurasia. (In: Paleontology of the Precambrian and Early Cambrian.) |
1979 |
| details |
Tremadocian |
|
Estonia |
Volkova,N.A. Acritarchs from the Cambrian-Ordovician boundary sediments of northern Estonia |
1989 |
| details |
Late Cambrian |
|
USSR(Estonian SSR) |
Volkova,N.A. Acritarchs of the Desposits of the Cambrian-Ordovician boundary northern Estonia |
1989 |
| details |
Tremadocian |
|
Austria |
Reitz,E. et al. Palynological evidence for Lower Ordovician rocks (Tremadoc and Arenig) in the northern Greywacke zone (Eastern Alps) |
1992 |