| details |
Middle Ordovician |
Late Ordovician |
France |
Rauscher,R. Ordovician acritarchs from France. |
1974 |
| details |
Middle Ordovician |
Late Ordovician |
Ohio |
Jacobson,S.R. Biostratigraphy and paleoecology of acritarchs from Middle and Upper Ordovician rocks in the Cincinnati Region. |
1977 |
| details |
Middle Ordovician |
Late Ordovician |
New York |
Jacobson,S.R. Middle and Upper Ordovician acritarchs, Eastern Midcontinent, USA. |
1977 |
| details |
Middle Ordovician |
Late Ordovician |
Ohio |
Jacobson,S.R. Middle and Upper Ordovician acritarchs, Eastern Midcontinent, USA. |
1977 |
| details |
Middle Jurassic |
|
USSR(European) |
Chirva,S.A. et al. Correlation of Middle Jurassic - Callovian Sandy Deposits of the Sysola, Yarenga and Pechora River Basins. (In: Jurassic Deposits of the Russian Platform: Collection of Scientific Papers) |
1986 |
| details |
Middle Gothlandian |
Late Gothlandian |
Spain |
Cramer,F.H. et al. Taxonomic considerations on the acritarchs of the Middle and Upper Silurian of northern Spain. |
1968 |
| details |
Middle Frasnian |
|
Canada(Quebec) |
Cloutier,R. et al. Biostratigraphy of the Upper Devonian Escuminac Formation eastern Quebec, Canada: A comparative study based on miospores and Fishes |
1996 |
| details |
Middle Frasnian |
Late Frasnian |
Belgium |
Vanguestaine,M. et al. Palynofacies in three near to off-reef shaly deposits from Late Middle to Late Frasnian age (Upper Devonian) at Neuville and Frasnees (Dinant Synclinorium, Belgium) |
1996 |
| details |
Middle Frasnian |
|
Belgium |
Vanguestaine,M. et al. Evolution of organic debris and palynomorph preservation in two late middle Frasnian sections, southern Dinant Synclinorium border, Belgium. |
1999 |
| details |
Middle Devonian |
Late Devonian |
Illinois |
Guennel,G.K. Devonian spores in a Middle Silurian Reef. |
1963 |
| details |
Middle Devonian |
|
Brazil(Pernambuco) |
Brito,I.M. Contribution to the knowledge of Devonian microfossils of Pernambuco.1. Archaeotriletes |
1967 |
| details |
Middle Devonian |
|
Argentina(Salta) |
Volkheimer,W. et al. Stratigraphic significance of Paleozoic and Mesozoic microflora from Argentina and neighboring countries. |
1976 |
| details |
Middle Devonian |
|
Argentina(Jujuy) |
Volkheimer,W. et al. Stratigraphic significance of Paleozoic and Mesozoic microflora from Argentina and neighboring countries. |
1976 |
| details |
Middle Cretaceous |
Late Cretaceous |
Atlantic Coast Offshore |
Habib,D. Palynostratigraphy of Cretaceous sediments from Site 387, Western Bermuda Rise. |
1979 |
| 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 |
Middle Cambrian |
|
Baltic |
Rudavskaya,V.A. Palaeozoic Hystrichospheres. |
1969 |
| details |
Middle Cambrian |
Silurian |
Eurasia |
Timofeev,B.V. Proterozoic and early microfossils. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) |
1973 |