| details |
Givetian |
Late Devonian |
Algeria |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Emsian |
|
Brazil |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Emsian |
Late Devonian |
France |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Early Devonian |
|
Brazil(Maranhao) |
Playford,G. Lower to Middle Devonian acritarchs of the Moose River Basin, Ontario. |
1977 |
| details |
Middle Devonian |
|
Ohio |
Wood,G.D. et al. Organic-walled microphytoplankton of the Middle Devonian Silica Formation, Ohio, USA. |
1979 |
| details |
Frasnian |
|
Australia(W.Australia) |
Playford,G. et al. Late Devonian acritarchs from the Carnarvon Basin, Western Australia. |
1981 |
| 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 |
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 |
Early Devonian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |