| details |
Late Ludlovian |
Gedinnian |
Spain |
Cramer,F.H. et al. Robledo and Arroyacas Formation, (Arroyo de Las Arroyacas, Province of Palencia, Spain) palynologically dated as Late Silurian. |
1977 |
| details |
Siegenian |
Givetian |
Canada(Ontario) |
Playford,G. Lower to Middle Devonian acritarchs of the Moose River Basin, Ontario. |
1977 |
| details |
Ordovician |
Silurian |
Bulgaria |
Kalvacheva,R.K. Acritarch stratigraphy of Lower Paleozoic formations in the West Balkan Mountains, Bulgaria. |
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 |
Ashgillian |
Portugal |
Elaouad-Debbaj,Z. Late Ordovician acritarches of the Bucaco Syncline (Portugal); systematics-biostratigraphy-paleogeographic interests. |
1978 |
| details |
Llandoverian |
|
Syria |
Yankauskas,T.V. et al. The Paleozoic of Syria-Arabian Republic |
1978 |
| details |
Early Wenlockian |
|
USSR(Ukrainian SSR) |
Kiryanov,V.V. Silurian acritarchs of Volhynia and Podolia |
1978 |
| details |
Late Gothlandian |
|
France(Finistere) |
Babin,C. et al. The Porz Ar Vouden section (Pridolian of the Crozon Peninsula), Amorican Massif, France. Lithology and biostratigraphy. |
1979 |
| 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 |
Devonian |
|
Bulgaria |
Sergeeva,L.A. et al. On the Paleozoic age of the metamorphic rocks in Stradza |
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 |
Gedinnian |
|
France(Finistere) |
Deunff,J. Paleoplankton of the Gedinnian Landevennec Sandstone (Rade de Brest, Finistere). A biostratigraphic study. |
1980 |
| details |
Gedinnian |
|
France(Finistere) |
Deunff,J. Paleoplankton of the Gedinnian Landevennec Sandstone (Rade de Brest, Finistere). A biostratigraphic study. |
1980 |
| details |
Early Devonian |
|
France(Finistere) |
Deunff,J. The acritarchs. |
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 |
Late Ludlovian |
|
Guinea |
Baudelot,S. et al. Presence of microplankton from Upper Ludlovian in the locality of Tomboya, (Gunea) |
1980 |
| details |
Frasnian |
|
Australia(W.Australia) |
Playford,G. et al. Late Devonian acritarchs from the Carnarvon Basin, Western Australia. |
1981 |