| details |
Late Llandoverian |
Wenlockian |
North America |
Le H©riss©,A. Biogeography of upper Llandovery and Wenlock acritarchs. |
1995 |
| details |
Late Llandoverian |
Wenlockian |
Sweden(Gotland) |
Le H©riss©,A. Biogeography of upper Llandovery and Wenlock acritarchs. |
1995 |
| details |
Late Llandoverian |
Wenlockian |
Greenland |
Le H©riss©,A. Biogeography of upper Llandovery and Wenlock acritarchs. |
1995 |
| details |
Late Llandoverian |
Wenlockian |
Belgium |
Le H©riss©,A. Biogeography of upper Llandovery and Wenlock acritarchs. |
1995 |
| original |
Cambrian |
Tremadocian |
Italy |
Kalvacheva,R.K. et al. Acritarch evidence for the Cambrian age of Phyllites in the Agordo area (South-Alpine Basement of eastern Alps, Italy). |
1986 |
| original |
Emsian |
Strunian |
Brazil(Piaui) |
de Quadros,L.P. Biostratigraphic distribution of chitinozoa and acritarchs of the Parnaiba Basin |
1982 |
| details |
Middle Ordovician |
Late Ordovician |
France |
Rauscher,R. Ordovician acritarchs from France. |
1974 |
| details |
Givetian |
Frasnian |
Bolivia |
Wood,G.D. The acritarch Proteolobus wallii, gen.et sp.nov., from the Devonian Iquiri Formation of Bolivia: A possible coenobial alga. |
1997 |
| original |
Emsian |
Famennian |
Brazil(Maranhao) |
Brito,I.M. et al. New occurrences of acritarchs in the Devonian of the Parnaiba Basin. (In: Paleobotanica e Palinologia na America do Sul; 1983) |
1984 |
| original |
Llandoverian |
Early Siegenian |
Spain |
Rodriguez Gonzalez,R.M. Palynology of the Upper Silurian-Lower Devonian Formations of the Cantabrica Cordillera, Northeast Spain. |
1983 |
| details |
Late Ordovician |
Devonian |
Algeria |
Ilavsky,J. et al. Presence of Paleozoic acritarchs in metamorphic rocks of the Edough Massif (Wilaya of Annaba, eastern Algeria) |
1987 |
| details |
Tremadocian |
|
USSR(Moscow Basin) |
Aristova,K.E. Typical assemblages of Ordovician and Silurian microfossils from the Moscow Syncline. |
1980 |
| details |
Early Cambrian |
|
Finland |
Tynni,R. On Paleozoic microfossils in clastic dykes on the …land Islands and in the core samples of Lumparn. (In: Paleozoic sediments in the Rapakivi area of the …land Islands. L. Bergman, R. Tynni and B. Winterhalter, editors.) |
1982 |
| details |
Early Gothlandian |
|
Canada(Anticosti Island) |
Duffield,S.L. et al. Gradational morphological series in Early Silurian acritarchs from Anticosti Island, Quebec. |
1982 |
| details |
Llanvirnian |
|
France(Calvados) |
Rauscher,R. Micropaleontological and stratigraphic research in the Ordovician and Silurian in France. Study of the acritarchs, chitinozoans and spores. |
1973 |
| details |
Early Scythian |
|
Australia(W.Australia) |
Sappal,K.K. Triassic acritarchs from Western Australia and their stratigraphic significance |
1978 |
| details |
Middle Devonian |
|
Canada(Ontario) |
Eley,B.E. et al. Cherts of Southern Ontario |
1989 |