| details |
Middle Ludlovian |
|
Argentina |
Volkheimer,W. et al. Stratigraphic significance of Paleozoic and Mesozoic microflora from Argentina and neighboring countries. |
1976 |
| details |
Emsian |
|
Uruguay |
Volkheimer,W. et al. Stratigraphic significance of Paleozoic and Mesozoic microflora from Argentina and neighboring countries. |
1976 |
| details |
Ashgillian |
|
Bulgaria |
Kalvacheva,R.K. Acritarch stratigraphy of Lower Paleozoic formations in the West Balkan Mountains, Bulgaria. |
1978 |
| details |
Caradocian |
|
Poland |
GŠ³rka,H. The Middle Ordovician acritarchs of Olsztyn IG2, (Poland). |
1979 |
| details |
Llandoverian |
|
Belgium |
Martin,F. et al. Ordovician and Silurian acritarchs, chitinozoans, and graptolites of the Sennette Valley (Brabant Massif, Belgium). |
1979 |
| details |
Late Llandoverian |
Wenlockian |
Belgium |
Martin,F. et al. Acritarchs, chitinozoans and graptolites of the Ordovician and Silurian of the Sennette Valley (Brabant Massive, Belgium) |
1979 |
| details |
Early Frasnian |
|
France(Pas-de-Calais) |
Deunff,J. Preliminary observations on the paleophytoplankton of a cutting from Caffiers, (Givetien - Frasnien du Boulnnais, France). |
1981 |
| details |
Silurian |
Early Gedinnian |
France(Cotes du Nord) |
Rolet,J. et al. Paleozoic formations at the edge of the Brioverian Dome of Plourach, (Cotes-du-Nord). |
1982 |
| original |
Gedinnian |
|
Libya |
Al-Ameri,T.K. New taxa of the acritarch Group "Pterospermopsis". |
1984 |
| details |
Pridolian |
|
Missouri |
Colbath,G.K. A comparison of palynological extraction techniques using samples from the Silurian Bambridge Formation, Missouri, USA. |
1985 |
| details |
Tremadocian |
Arenigian |
China(Shanghai) |
Hu,Y. Micropalaeoflora from the Early Ordovician in Gaoqiao Region of Shaanxi and its stratigraphic significance. |
1986 |
| original |
Late Llandoverian |
|
Austria |
Priewalder,H. Acritarchs of the Silurian of the Cellon section (Karnische Alpen, Austria). |
1987 |
| details |
Wenlockian |
Devonian |
Canada(Ontario) |
Eley,B.E. et al. Cherts of Southern Ontario |
1989 |
| details |
Late Arenigian |
Early Llanvirnian |
Spain |
Mette,W. Acritarchs from Lower Paleozoic rocks of the Western Sierra Morena, southwest Spain and biostratigraphic results. |
1989 |
| details |
Late Ludlovian |
Pridolian |
Argentina(San Juan) |
Rubinstein,C.V. Palynology of the Upper Silurian (Los Espejos Formation) of the Quebrada de Las Aquaditas San Juan Precordillera, Argentina. |
1992 |
| details |
Late Ludlovian |
|
Argentina(San Juan) |
Rubinstein,C.V. Acritarchs from the Upper Silurian of San Juan, Argentina: Biostratigraphy and palaeobiogeography. (In: Contributions to Acritarch and Chitinozoan Research. S.G.Molyneux and K.J.Doring, editors) |
1993 |
| details |
Early Ludlovian |
|
New York |
Loduca,S.T. et al. The Medusaegraptus edibole and Lower Ludlovian Konservat-Lagerstatten of eastern North America. (In: Paleontological Events Stratigraphic, Ecological and Evolutionary Implications. Carlton E.Brett and Gordon C.Baird, editors) |
1997 |