| details |
Late Proterozoic |
|
Morocco |
Choubert,G. et al. First results of acritarch research in the Precambrian of the Anti-Atlas. |
1979 |
| details |
Early Riphean |
Middle Riphean |
Morocco |
Timofeev,B.V. et al. Acritarchs of the Precambrian in Mobile Zones. |
1980 |
| details |
Middle Riphean |
Late Riphean |
Morocco |
Choubert,G. et al. Subdivisions of the Precambrian in Anti-Atlas in terms of a model for Project PICG No.2. (In: Principles and Criteria of Subdivision of Precambrian Mobile Zones. F.P.Mitrofanov, editor) |
1980 |
| details |
Riphean |
|
Morocco |
Choubert,G. et al. The Precambrian in North Peri-Atlantic and South Mediterranean Mobile zones; General results. (In: The Precambrian in Mobile Zones.) |
1980 |
| details |
Richmondian |
|
Missouri |
Wicander,R. et al. Stratigraphy and paleogeographic significance of an Upper Ordovician acritarch flora from the Maquoketa Shale, Northeastern Missouri, USA |
1999 |
| details |
Richmondian |
|
Missouri |
Wicander,R. et al. Taxonomic, biostratigraphic, and paleogeographic implications of an Upper Ordovician acritarch assemblage from the Maquoketa Shale, Northeastern Missouri, U.S.A. |
1998 |
| details |
Late Ordovician |
|
Michigan |
Obermajer,M. et al. Application of acritarch fluorescence in thermal maturity study. |
1999 |
| details |
Devonian |
Mississippian |
Kentucky |
Teerman,S.C. et al. Source rock/dispersed organic matter characterization-TSOP Research Subcommittee results. |
1994 |
| details |
Middle Caradocian |
|
Iowa |
Pancost,R.D. et al. Organic-matter source variation and the expression of a Late Middle Ordovician carbon isotope eccursion. |
1999 |
| details |
Late Ordovician |
|
Indiana |
Guthrie,J.M. et al. Geochemical character and origin of oils in Ordovician Reservoir rock Illinois and Indiana, USA |
1995 |
| details |
Precambriam |
|
India(Rajasthan) |
Mandal,J. et al. Microbiota from the Kushalgarh Formation, Delhi Supergroup, India. |
1984 |
| details |
Middle Cambrian |
Late Cambrian |
India(Karnataka) |
Viswanathiah,M.N. et al. Acritarchs and other microfossils from the cherts of Mudhol Formation, Kaladgi, South India. |
1984 |
| details |
Proterozoic |
|
India(Karnataka) |
Viswanathiah,M.N. et al. Microfossils from the Badami Group, Karnataka South India |
1976 |
| details |
Cincinnatian |
|
Illinois |
Guthrie,J.M. et al. Geochemical indicators of depositional environment and source-rock potential for the Upper Ordovician Maquoketa Group, Illinois Basin. |
1994 |
| details |
Late Ordovician |
|
Illinois |
Guthrie,J.M. et al. Geochemical character and origin of oils in Ordovician Reservoir rock Illinois and Indiana, USA |
1995 |
| details |
Late Cretaceous |
|
Hungary |
Kedves,M. et al. LM and TEM investigations on the Upper Cretaceous Ajkaite of Hungary 1. |
2000 |
| details |
Late Llandoverian |
Wenlockian |
Greenland |
Le H©riss©,A. Biogeography of upper Llandovery and Wenlock acritarchs. |
1995 |