| details |
Nd |
|
Nd |
Wicander,E.R. et al. Organic-walled microphytoplankton and its stratigraphic significance from the Upper Devonian Antrim Shale, Indiana USA. |
1977 |
| details |
Nd |
|
Nd |
Wicander,E.R. et al. Organic-walled microphytoplankton and its stratigraphic significance from the Upper Devonian Antrim Shale, Indiana USA. |
1977 |
| details |
Early Devonian |
|
Tennessee |
Reaugh,A.B. et al. Acritarchs and chitinozoans from the Lower Devonian (Helderbergian) Birdsong Shale, Decatur County, Tennessee. |
1977 |
| 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 |
Nd |
|
Nd |
Loeblich,A.R.,Jr. et al. Some new and revised organic-walled phytoplankton microfossil genera. |
1976 |
| details |
Lochkovian |
Pragian |
France(Bretagne) |
Baudu,V. et al. Relationships between organic-walled microfossils and palaeoenvironments: examples of two Devonian Formations from the Armorican Massif and Aquitaine |
1995 |
| details |
Emsian |
Early Eifelian |
Georgia |
Ravn,R.L. et al. Lower Devonian spores and acritarchs from the subsurface of Southwestern Georgia. |
1984 |
| details |
Early Tremadocian |
|
Italy |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Early Tremadocian |
|
Canada(Newfoundland) |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Early Tremadocian |
|
Iran |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Early Tremadocian |
|
Africa(N.Africa) |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Early Tremadocian |
|
Argentina |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Ordovician |
|
Nd |
Servais,T. An annotated bibliographical review of Ordovician acritarchs |
1997 |
| details |
Nd |
|
Nd |
Strother,P.K. Acritarchs. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Muschelkalk |
|
Europe |
Grenfell,H.R. Middle Triassic Muschelkalk acritarchs -some preliminary Thoug |
1989 |
| details |
Nd |
|
Nd |
Servais,T. Some considerations on acritarch classification |
1996 |
| details |
Early Tremadocian |
|
Spain |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |