| details |
Tremadocian |
Late Arenigian |
Morocco |
Swain,F.M. Notes on Paleozoic acritarchs from the Atlantic Margins. (In: Stratigraphic Micropaleontology of Atlantic Basin and Borderlands. F.M.Swain, editor) |
1977 |
| details |
Silurian |
|
Worldwide |
Cramer,F.H. et al. Silurian acritarchs |
1974 |
| details |
Middle Llandoverian |
|
Argentina(San Juan) |
Pжthe de Baldis,E.D. Acritarchs from the Early to Middle Llandoverian Don Braulio Formation of the eastern Precordillera of San Juan Province, Argentina |
1997 |
| details |
Middle Arenigian |
|
Argentina(Jujuy) |
Ottone,E.G. et al. Lower Ordovician palynomorphs from the Acoite Formation, Northwestern Argentina. |
1992 |
| details |
Middle Arenigian |
|
Pakistan |
Tongiorgi,M. et al. Palynological dating (Arenig) of the sedimentary sequence overlying the Ishkarwaz Granite (Upper Yarkhun Valley, Chitral, Pakistan). |
1994 |
| details |
Llanvirnian |
|
E.Germany(Rostock) |
Servais,T. The Ordovician acritarchs from Rugen, (Northeast Germany), palaeobiogeographical evidence for the attribution to eastern Avalonia. |
1994 |
| details |
Llandeilian |
Early Caradocian |
Wales |
Trythall,R.J.B. et al. Age and controls of Ironstone deposition (Ordovician) North Wales. |
1987 |
| details |
Late Ordovician |
|
Czechoslovakia |
VavrdovЎ,M. Further acritarchs and terrestrial plant remains from the Late Orovician at Hlasna Treban (Czechoslovakia) |
1988 |
| details |
Late Arenigian |
Llanvirnian |
Belgium |
Martin,F. et al. Ordovician and Silurian acritarchs, chitinozoans, and graptolites of the Sennette Valley (Brabant Massif, Belgium). |
1979 |
| details |
Late Arenigian |
Llanvirnian |
Belgium |
Martin,F. et al. Acritarchs, chitinozoans and graptolites of the Ordovician and Silurian of the Sennette Valley (Brabant Massive, Belgium) |
1979 |
| details |
Late Arenigian |
Llanvirnian |
Belgium |
Martin,F. et al. Acritarchs, chitinozoans and graptolites of the Ordovician and Silurian of the Sennette Valley (Brabant Massive, Belgium) |
1979 |
| details |
Late Arenigian |
|
England(Cumberland) |
Molyneux,S.G. Advances and problems in Ordovician palynology in England and Wales |
1990 |
| details |
Late Arenigian |
Caradocian |
England(Cumberland) |
Millward,D. et al. Field and biostratigraphic evidence for an unconformity at the Base of the Eycott Volcanic Group in the English Lake District |
1992 |
| details |
Late Arenigian |
|
England(Lancashire) |
Rushton,A.W.A. et al. The biostratigraphic age of the Skiddaw Group in the Black Combe Inlier, English Lake District. |
1989 |
| details |
Late Arenigian |
Early Llanvirnian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| original |
Late Arenigian |
Early Llanvirnian |
Morocco |
Cramer,F.H. et al. Early Ordovician acritarchs from the Tadla Basin of Morocco. |
1974 |
| details |
Late Arenigian |
|
Libya |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1976 |