| details |
Ludlovian |
|
Indiana |
Wood,G.D. Acritarchs and Trilete spores from the Mississinewa Shale of northern Indiana. |
1975 |
| details |
Lochkovian |
Pragian |
France(Bretagne) |
Baudu,V. et al. Relationships between organic-walled microfossils and palaeoenvironments: examples of two Devonian Formations from the Armorican Massif and Aquitaine |
1995 |
| details |
Llanvirnian |
Llandeilian |
Spain |
Fombella,M.A. et al. New palynological results from the Oville Formation at Southwest Vozmediano, Leon (northwestern Spain). (In: Commision Internationale De |
1996 |
| details |
Llandoverian |
|
Canada(Anticosti Island) |
Duffield,S.L. et al. Acritarch biostratigraphy of Upper Ordovician-Lower Silurian strata of Anticosti Island, Quebec and implications for intracontinental correlation. |
1981 |
| details |
Llandoverian |
Wenlockian |
England(Shropshire) |
Hill,P.J. A review of Cymbosphaeridium pilar and comparison with Multiplicisphaeridium pachymurum, sp.nov., from the Llandovery and Wenlockof Shropshire, Great Britain. |
1978 |
| details |
Llandoverian |
Ludian |
Poland |
Chorowska,M. et al. Ordovician, Silurian and Devonian rocks at Luban (Kaczawa Mountains, Sudety Mountains). |
1981 |
| details |
Late Ordovician |
|
Indiana |
Miller,M.A. et al. Upper Ordovician (Lower Richmondian) acritarchs and chitinozoans from southeastern Indiana, USA. |
1981 |
| details |
Late Ordovician |
|
Czechoslovakia |
VavrdovЎ,M. Phytoplankton communities of Cambrian and Ordovician age of Central Bohemia |
1982 |
| details |
Late Ordovician |
|
USSR(Lithuanian SSR) |
Pa?keviciene,L. Acritarchs from the Upper Ordovician of East Lithuania |
1993 |
| details |
Late Ordovician |
Late Gothlandian |
USSR(Russian Platform) |
Umnova,N.I. Silurian and Ordovician acritarch assemblages from the northern and western parts of the Russian Platform. |
1971 |
| details |
Late Ordovician |
Early Carboniferous |
Nd |
Downie,C. Observations on the nature of the acritarchs |
1973 |
| details |
Late Ordovician |
|
Estonia |
Paalits,I. Biostratigraphy: Acritarchs |
1990 |
| details |
Late Llandoverian |
Early Wenlockian |
Indiana |
Wood,G.D. Paleoecologic and biostratigraphic significance of chitinozoans and microplankton from the Lower Silurian Osgood Member of the Salamonite Dolomite, Indiana and Kentucky, USA. |
1988 |
| details |
Late Llandoverian |
Early Wenlockian |
Kentucky |
Wood,G.D. Paleoecologic and biostratigraphic significance of chitinozoans and microplankton from the Lower Silurian Osgood Member of the Salamonite Dolomite, Indiana and Kentucky, USA. |
1988 |
| details |
Late Llandoverian |
Early Wenlockian |
Italy(Sardinia) |
Di Milia,A. et al. Acritarch findings in Early Paleozoic, low-grade metasediments of Sardinia (Italy): A review. |
1993 |
| details |
Late Devonian |
Early Carboniferous |
China(Tibet) |
Gao,L. Late Devonian and Early Carboniferous acritarchs from Nyalam County, Xizang, (Tibet), China. |
1984 |
| original |
Late Devonian |
|
Canada(Alberta) |
Staplin,F.L. Reef-Controled distribution of Devonian microplankton in Alberta. |
1961 |