| details |
Gedinnian |
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 |
Late Llandoverian |
|
Canada(Quebec) |
Achab,A. Acritarchs from the Awantjish Formation (Upper Llandoverian) in the Val Brillant Borehold, Matapedia Valley, Quebec. |
1976 |
| details |
Edenian |
|
Kentucky |
Jacobson,S.R. Acritarchs from the Upper Ordovician Clays Ferry Formation, Kentucky, USA. |
1978 |
| details |
Frasnian |
Famennian |
Kentucky |
Martin,S.J. et al. A biostratigraphic analysis of core samples from wells drilled in the Devonian shale interval of the Appalachian and Illinois Basin |
1978 |
| details |
Caradocian |
|
Portugal |
Elaouad-Debbaj,Z. Late Ordovician acritarches of the Bucaco Syncline (Portugal); systematics-biostratigraphy-paleogeographic interests. |
1978 |
| details |
Wenlockian |
|
Sweden |
Cramer,F.H. et al. Acritarchs. (In: Lower Wenlock faunal and flora dynamics-Vattenfallet section, Gotland. V.Jaanusson, S.Laufeld and R.Skoglund, editors) |
1979 |
| details |
Llandoverian |
|
Spain |
Hafenrichter,M. The lower and upper boundary of the Ordovician system of some selected regions, (Celtiberia, Eastern Sierramorena) in Spain. Part 2. The Ordovician/Silurian bounday in Spain. |
1980 |
| details |
Late Ordovician |
Early Gothlandian |
Ghana |
Bar,P. et al. Latest Ordovician to Earliest Silurian microfloras from the Lower Sekondian Series of Ghana, (West Africa), and their relationship to those from the Itaim Formation of the Maranhao Basin in Northeast Brazil. |
1980 |
| details |
Middle Gothlandian |
|
New York |
Tappan,H. The Paleobiology of Plant Protists. |
1980 |
| details |
Llandoverian |
Wenlockian |
England(Shropshire) |
Dorning,K.J. Silurian acritarchs from the type Wenlock and Ludlow of Shropshire, England. |
1981 |
| details |
Late Ashgillian |
Early Llandoverian |
Canada(Anticosti Island) |
Duffield,S.L. et al. Acritarch biostratigraphy of the Ordovician-Silurian boundary beds and the Llandoverian, Anticosti Island,Quebec. |
1981 |
| details |
Late Rhuddanian |
Early Telychian |
Wales(Carmarthenshire) |
Hill,P.J. et al. Appendix 1: Acritarchs. (The Llandovery Series of the type area. L.R.M.Cocks et al, editors) |
1984 |
| details |
Early Gothlandian |
|
Libya |
Hill,P.J. et al. Silurian palynomorphs. (In: Palynology of Northeast Libya. B.Thusu and B.Owens, editors) |
1985 |
| details |
Early Gothlandian |
|
Libya |
Hill,P.J. et al. Silurian palynomorphs. (In: Palynology of Northeast Libya. B.Thusu and B.Owens, editors) |
1985 |
| details |
Late Llandoverian |
|
Austria |
Priewalder,H. Acritarchs of the Silurian of the Cellon section (Karnische Alpen, Austria). |
1987 |
| details |
Aeronian |
|
Libya |
Hill,P.J. et al. Biostratigraphy, palynofacies and provincialism of Late Ordovician-Early Silurian acritarchs from northeastern Libya. (In: The Subsurface Palynostratigraphy of Northeast Libya. Special Publication of the University of Garryounis, Libya. E.Arnauti et al, editors) |
1989 |
| details |
Early Lochkovian |
|
France |
Moreau-Benoit,A. et al. New palynostratigraphical data on the Armorican Lower Devonian |
1989 |