| details |
Senecan |
Chautauquan |
New York |
Wood,G.D. Palynology and paleobotany of the Jave and Lowermost Canadaway Formations, Upper Devonian, (Senecan/Chautauquan ), New York State. |
1978 |
| details |
Frasnian |
|
Peru |
Wood,G.D. A stratigraphic, paleoecologic and paleobiogeographic review of the acritarchs Umbellasphaeridium deflandrei and Umbellasphaeridium saharicum. (In: Biostratigraphy. P.K.Sutherland and W.L.Manger, editors) |
1984 |
| details |
Ludlovian |
|
Libya |
Wood,G.D. et al. A unique new genus of acritarcha, (organic-walled microphytoplankton), from the Tanezzuft Formation (Silurian) of Libya. |
1987 |
| 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 |
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 |
Late Siegenian |
Middle Givetian |
Canada(Ontario) |
Wicander,R. A catalogue and biostratigraphic distribution of North American Devonian acritarchs. |
1983 |
| details |
Gedinnian |
|
Oklahoma |
Wicander,R. Lower Devonian, (Gedinnian) acritarchs from the Haragan Formation, Oklahoma, USA. |
1986 |
| details |
Late Siegenian |
Givetian |
North America |
Wicander,R. Middle Devonian acritarch biostratigraphy of North America |
1984 |
| details |
Late Ludlovian |
Emsian |
Germany(Saxony) |
Walter,H. et al. Paleozoic microfossils from the northern Margin of the Erzgebir Mountains, (Saxony). |
1998 |
| details |
Nd |
|
W.Germany(N.Rhine) |
Volkmer,U. Palynology of the Early Devonian, (Siegenian - Emsian), in the eastern Rhineland. |
1984 |
| details |
Middle Siegenian |
|
W.Germany(N.Rhine) |
Volkmer,U. Palynology of the Early Devonian, (Siegenian - Emsian), in the eastern Rhineland. |
1984 |
| details |
Late Ordovician |
|
Czechoslovakia |
VavrdovЎ,M. Phytoplankton communities of Cambrian and Ordovician age of Central Bohemia |
1982 |
| details |
Late Ordovician |
|
Czechoslovakia |
VavrdovЎ,M. Further acritarchs and terrestrial plant remains from the Late Orovician at Hlasna Treban (Czechoslovakia) |
1988 |
| details |
Siegenian |
Emsian |
Belgium |
Vanguestaine,M. Reworked acritarchs in the Siegenian and Emsian (Lower Devonian), from Dinant Synclinorium, (Belgium). |
1979 |
| details |
Late Frasnian |
Early Famennian |
Belgium |
Vanguestaine,M. et al. Acritarch zonation of the Upper Frasnian - Lower Famennian of the Dinant, Namur, Herve and Campine Basins, (Upper Devon of Belgium). |
1983 |
| details |
Late Tournaisian |
Early Visean |
Canada(Nova Scotia) |
Utting,J. et al. Palynology and stratigraphy of the Lower Carboniferous Horton Group, Nova Scotia. (In: Contributions to Canadian Paleontology.) |
1989 |
| details |
Pridolian |
Gedinnian |
Libya |
Tekbali,A.O. et al. Silurian spores, acritarchs and chitinozoans from the Bani Walid Borehole of the Ghadamis Basin, Northwest Libya. (In: The Geology of Libya. M.J.Salem et al, editors) |
1991 |