| details |
Ludlovian |
Early Gedinnian |
Spain |
Cramer,F.H. Hoegispheres and other microfossils incertae sedis of the San Pedro Formation (Siluro-Devonian boundary) near Valporquero, Eon, northwest Spain. |
1966 |
| details |
Early Devonian |
|
Canada(Ontario) |
Cramer,F.H. Hoegispheres and other microfossils incertae sedis of the San Pedro Formation (Siluro-Devonian boundary) near Valporquero, Eon, northwest Spain. |
1966 |
| details |
Silurian |
|
USA |
Cramer,F.H. et al. North American Silurian palynofacies and their spatial arrangement. |
1972 |
| details |
Ludlovian |
Gedinnian |
Algeria |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Siegenian |
Eifelian |
Algeria |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Ludlovian |
Emsian |
Algeria |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Ludlovian |
Emsian |
France |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Ludlovian |
Emsian |
Brazil |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Ludlovian |
Emsian |
Europe |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Ludlovian |
Emsian |
Canada |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Emsian |
|
Africa |
Jardin©,S. et al. Fossil organic microplankton |
1972 |
| details |
Ludlovian |
Gedinnian |
Algeria |
Jardin©,S. et al. Stratigraphic distribution of acritarchs in the Palaeozoic of the Algerian Sahara. |
1974 |
| details |
Siegenian |
Emsian |
Algeria |
Jardin©,S. et al. Stratigraphic distribution of acritarchs in the Palaeozoic of the Algerian Sahara. |
1974 |
| details |
Late Emsian |
|
Spain |
Cramer,F.H. et al. Acritarchs from the La Vid Shales (Emsian to Lower Couvinian) at Colle, Leon, Spain. |
1976 |
| details |
Late Siegenian |
|
France(Ille-et-Vilaine) |
Deunff,J. The acritarchs in the Early Devonian shales and limestones of Saint-Cenere. (In: Massif Armoricain, France. H.Lardeux, editor) |
1976 |
| details |
Siegenian |
Emsian |
Canada(Ontario) |
Playford,G. Lower to Middle Devonian acritarchs of the Moose River Basin, Ontario. |
1977 |
| details |
Wenlockian |
Ludlovian |
USSR(Ukrainian SSR) |
Kiryanov,V.V. Silurian acritarchs of Volhynia and Podolia |
1978 |