| details |
Early Cambrian |
|
USSR(Estonian SSR) |
Mens,K.A. et al. Environmental control in the distribution of acritarchs in the Lontova Stage of Estonia. |
1981 |
| details |
Middle Precambrian |
Late Precambrian |
India |
Prasad,K.N. Review of Precambrian microfossils from Peninsular India. (In: Stromatolites, Characteristics and Utility) |
1980 |
| details |
Emsian |
Givetian |
Brazil |
Brito,I.M. Stratigraphy of the Parnaiba Basin I. Lower sedimentary sequence |
1979 |
| 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 |
Caradocian |
|
Ohio |
Jacobson,S.R. Acritarch biostratigraphy of Middle and Late Ordovician Carbonate rocks of the Trenton Group, New York, and equivalent strata in the Cincinnati region. |
1977 |
| details |
Archean |
|
India |
Venkatachala,B.S. A decade of stratigraphic palynology in India. |
1976 |
| 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 |
Hauterivian |
Barremian |
|
Volkheimer,W. et al. Palynological characteristics of the Upper Juarssic and Lower Cretaceous Formations of the Neuqu©n Basin, (Argenine Republic). |
1976 |
| details |
Nd |
|
Nd |
Loeblich,A.R.,Jr. Protistan phylogeny as indicated by the fossil record. |
1974 |
| details |
Ordovician |
Early Carboniferous |
Nd |
Downie,C. Observations on the nature of the acritarchs |
1973 |