| details |
Givetian |
Mississippian |
Ohio |
Wicander,R. A catalogue and biostratigraphic distribution of North American Devonian acritarchs. |
1983 |
| details |
Givetian |
Mississippian |
Canada(Alberta) |
Wicander,R. A catalogue and biostratigraphic distribution of North American Devonian acritarchs. |
1983 |
| details |
Late Siegenian |
Middle Givetian |
Canada(Ontario) |
Wicander,R. A catalogue and biostratigraphic distribution of North American Devonian acritarchs. |
1983 |
| details |
Middle Clintonian |
Late Clintonian |
New York |
Fisher,J.C. The Hystrichosphaerids in the Clinton Group, (Silurian), of New York State. |
1955 |
| details |
Late Famennian |
Early Mississippian |
Canada(Saskatchewan) |
Wicander,R. A catalogue and biostratigraphic distribution of North American Devonian acritarchs. |
1983 |
| details |
Late Famennian |
Early Mississippian |
Canada(NWT) |
Wicander,R. A catalogue and biostratigraphic distribution of North American Devonian acritarchs. |
1983 |
| details |
Middle Devonian |
Early Mississippian |
Ohio |
Winslow,M.R. Plant spores and other microfossils from Upper Devonian and Lower Mississippian rocks of Ohio |
1962 |
| details |
Late Devonian |
|
Brazil(Goias) |
Sommer,F.W. Devonian microfossils from Aragarcas, Goias. |
1963 |
| details |
Givetian |
|
Ohio |
Wicander,R. et al. Systematics and biostratigraphy of the organic-walled microphytoplankton from the Middle Devonian, (Givetian), Silica Formation, Ohio, USA. |
1981 |
| details |
Frasnian |
|
Canada(Alberta) |
Wicander,R. A catalogue and biostratigraphic distribution of North American Devonian acritarchs. |
1983 |
| details |
Ordovician |
|
W.Germany(N.Rhine) |
Kr¤usel,R. Are the Paleozoic Hystrichosphaeridiea cysts or plant spores? |
1939 |
| details |
Late Senonian |
|
Denmark |
Wetzel,O. Micropaleontological investigation of the Upper Senonian chalk from Stevns Klint-Kridtbrud on the Danish Seeland Island, and reference to flint boulders. |
1940 |
| details |
Nd |
|
Nd |
Eiserhardt,K.H. The Acritarchs of the –jlemyrflintes. |
1992 |
| details |
Nd |
|
Nd |
Moreau-Benoit,A. Some microplankton of the Lower Devonian of Anjou. |
1967 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Late Devonian |
|
Canada(Alberta) |
Staplin,F.L. Micropaleontology and mineralogy of Devonian Reefal Strata, Alberta. |
1956 |
| details |
Ordovician |
|
W.Germany(Rhineland) |
Eisenack,A. Chitinozoans and Hystrichospheres in the Ordovician of the Rhine Schiefergebirge. |
1939 |