| details |
Middle Carboniferous |
Late Carboniferous |
Argentina(Salta) |
Salfity,J.A. et al. Tarija Basin. (In: The Carboniferous System in the Republic of Argentina. S.Archangelsky, editor) |
1987 |
| details |
Late Llandoverian |
Early Wenlockian |
Indiana |
Wood,G.D. Paleoecologic and biostratigraphic significance of chitinozoans and microplankton from the Lower Silurian Osgood Member of the Salamonite Dolomite, Indiana and Kentucky, USA. |
1988 |
| details |
Late Llandoverian |
Early Wenlockian |
Kentucky |
Wood,G.D. Paleoecologic and biostratigraphic significance of chitinozoans and microplankton from the Lower Silurian Osgood Member of the Salamonite Dolomite, Indiana and Kentucky, USA. |
1988 |
| details |
Late Llandoverian |
Early Wenlockian |
Italy(Sardinia) |
Di Milia,A. et al. Acritarch findings in Early Paleozoic, low-grade metasediments of Sardinia (Italy): A review. |
1993 |
| details |
Late Devonian |
Early Mississippian |
Ohio |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystricosphaeres and related microfossils. |
1979 |
| details |
Late Devonian |
Early Mississippian |
Ohio |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Vol.5 Acritarcha. |
1979 |
| details |
Emsian |
Early Eifelian |
Georgia |
Ravn,R.L. et al. Lower Devonian spores and acritarchs from the subsurface of Southwestern Georgia. |
1984 |
| details |
Late Devonian |
Early Carboniferous |
China(Tibet) |
Gao,L. Late Devonian and Early Carboniferous acritarchs from Nyalam County, Xizang, (Tibet), China. |
1984 |
| details |
Late Ordovician |
Early Carboniferous |
Nd |
Downie,C. Observations on the nature of the acritarchs |
1973 |
| details |
Ordovician |
Devonian |
Nd |
Miller,M.A. Morphologic variation and significance of acritarch excystment structures through the Ordovician Silurian and Devonian. |
1982 |
| details |
Wenlockian |
|
Indiana |
Wood,G.D. Acritarchs, spores, and plant detritus from the Silurian, (Wenlockian) Waldron Shale of southeastern Indiana. |
1978 |
| details |
Nd |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |
| details |
Nd |
|
Nd |
Pirozynski,K.A. Fungal spores in fossil record. |
1976 |
| details |
Early Paleozoic |
|
Ghana |
Riegel,W. et al. Lower Paleozoic acritarchs of the Sekondi Series of Ghana (West Africa). |
1980 |
| details |
Tremadocian |
|
Spain |
Wolf,R. Acritarchs of the Tremadocian Keltiberien (northeast Spain). |
1980 |
| details |
Arenigian |
|
Wales |
Downie,C. et al. Changes in the acritarch assemblages at the Tremadoc boundaries in the United Kingdom. |
1979 |
| details |
Silurian |
|
Canada(Quebec) |
Duffield,S.L. Biostratigraphy and taxonomy of Lower Silurian acritarchs from Anticosti Island,Quebec. |
1981 |