| details |
Tremadocian |
|
Morocco |
Deunff,J. On a new form of acritarch possessing a polar aperture, (Veryhachium niloni, n.sp.), and on the presence of a colony of Veyhachium from the Tremadocian of Morocco. |
1968 |
| details |
Tremadocian |
|
England |
Downie,C. Observations on the nature of the acritarchs |
1973 |
| details |
Tremadocian |
|
Baltic |
VavrdovЎ,M. Geographical differentiation of Ordovician acritarch assemblages in Europe. |
1974 |
| details |
Tremadocian |
|
USSR(Estonian SSR) |
Aristova,K.E. Assemblages of microplant fossils of Lower and Middle Ordovician type sections of Estonia |
1976 |
| details |
Tremadocian |
|
Poland |
Michniak,R. et al. Discovery of Lower Paleozoic formations in the eastern part of the Kielce-Lagow Synclinorium. |
1976 |
| details |
Tremadocian |
|
Baltic |
Yankauskas,T.V. Revision of the age of the "Cambro-Ordoviciennes" formations of the Baltic Region by micropaleontological analysis. (Acritarchs and chitinozoes) |
1976 |
| details |
Tremadocian |
Early Arenigian |
Czechoslovakia |
Fatka,O. Early Arenig acritarchs from the Lower Klabava Formation (Prague Basin, Czechoslovakia). |
1992 |
| details |
Tremadocian |
|
Estonia |
Volkova,N.A. Acritarchs from the Cambrian-Ordovician boundary sediments of northern Estonia |
1989 |
| details |
Tremadocian |
|
Gondwanaland |
Li,J. et al. ################ |
2003 |
| details |
Tournaisian |
|
Ohio |
Molyneux,S.G. et al. Preliminary accounts of Late Devonian palynomorph assemblages from the Bedford Shale and Berea Sandstone Formations of Central Ohio, USA. |
1984 |
| original |
Tournaisian |
|
China(Tibet) |
Gao,L. Late Devonian and Early Carboniferous acritarchs from Nyalam County, Xizang, (Tibet), China. |
1986 |
| original |
Tournaisian |
|
Belgium |
Stockmans,F. et al. Hystrichospheres of the Belgium Devonian (Drilling at the Asylum for the demented at Tournai). |
1962 |
| original |
Tournaisian |
|
Belgium |
Stockmans,F. et al. Hystrichospheres of the Belgium Devonian (Drilling at the Asylum for the demented at Tournai). |
1962 |
| details |
Tournaisian |
|
Morocco |
Bouabdelli,M. et al. New palynological dates from the sandstones and conglomerates of the Migoumess Formation, (Eastern Central Hercynian Massif of Morocco). |
1990 |
| details |
Tournaisian |
|
Belgium |
Stockmans,F. et al. Dinantian acritarchs from a Drilling at the Asylum for the Demented, at Tournai, (Belgium). |
1966 |
| details |
Tournaisian |
|
Belgium |
Stockmans,F. et al. Dinantian acritarchs from a Drilling at Old Leuze, Leuze (Hainaut, Belgium) |
1966 |
| details |
Toarcian |
|
Australia(Queensland) |
McKellar,J.L. Palynostratigraphy of samples from GSQ Ipswich 24 and 25. |
1981 |