| details |
Early Arenigian |
|
England(Cumberland) |
Molyneux,S.G. Advances and problems in Ordovician palynology in England and Wales |
1990 |
| details |
Early Arenigian |
|
Wales(Carmarthenshire) |
Molyneux,S.G. Advances and problems in Ordovician palynology in England and Wales |
1990 |
| details |
Late Cambrian |
Early Tremadocian |
Sweden |
Tongiorgi,M. et al. Late Cambrian and Tremadocian phytoplankton (Acritarchs) communities from Oland (Sweden). |
1990 |
| details |
Late Cambrian |
Tremadocian |
USSR(Leningrad) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| details |
Middle Cambrian |
Late Cambrian |
USSR(Kalinin) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| details |
Late Cambrian |
|
USSR(Estonian SSR) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| details |
Middle Cambrian |
Tremadocian |
USSR(Yaroslav) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| original |
Early Cambrian |
Middle Cambrian |
USSR(Lithuanian SSR) |
Yankauskas,T.V. Biostratigraphy of the Lower and Middle Cambrian boundary Beds of Lithuania. |
1990 |
| original |
Middle Cambrian |
|
USSR(Lithuanian SSR) |
Yankauskas,T.V. Biostratigraphy of the Lower and Middle Cambrian boundary Beds of Lithuania. |
1990 |
| details |
Middle Cambrian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Arenigian |
|
Czechoslovakia |
VavrdovЎ,M. Early Ordovician acritarchs from the locality Myto near Rokycany (Late Arenig, Czechoslovakia) |
1990 |
| details |
Middle Cambrian |
Late Cambrian |
Tunisia |
Albani,R. et al. Palynostratigraphy (Acritarchs) of some Cambrian Beds from the Rhadames (Ghadamis) Basin (western Libya-southern Tunisia). |
1991 |
| details |
Middle Cambrian |
Late Cambrian |
Libya |
Albani,R. et al. Palynostratigraphy (Acritarchs) of some Cambrian Beds from the Rhadames (Ghadamis) Basin (western Libya-southern Tunisia). |
1991 |
| details |
Late Cambrian |
|
Italy(Sardinia) |
Di Milia,A. Upper Cambrian acritarchs from the Solanas Sandstone Formation, Central Sardinia, Italy. |
1991 |
| 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 |
Cambrian |
|
USSR(Russian Platform) |
Kiryanov,V.V. et al. Problems on stratigraphy of Cambrian in the South-West of the East-European Platform |
1991 |
| details |
Early Cambrian |
Middle Cambrian |
Poland |
Yankauskas,T.V. et al. Lower and Middle Cambrian acritarch-based biozonation of the Baltic Syneclise and adjacent area (East European Platform). |
1992 |