| details |
Middle Llandoverian |
|
Paraguay |
Wood,G.D. et al. Distinctive Silurian chitinozoans from the Itacurubi Group (Bargas Pena Shale), Chaco Basin, Paraguay. |
1991 |
| details |
Late Wenlockian |
|
Czechoslovakia |
Dufka,P. Late Wenlock acritarchs from the Prague Basin (Barrandian area, Bohemia). |
1991 |
| details |
Late Llandoverian |
|
Scotland(Dumfries) |
White,D.E. et al. Biostratigraphy of Late Llandovery (Telychian) and Wenlock Turbiditic sequences in the southwest Southern Uplands, Scotland. |
1992 |
| details |
Telychian |
|
Czechoslovakia(Bohemia) |
Dufka,P. Acritarchs of the Rastrites Linnaei zone (Lower Telychian) from the Prague Basin Barrandian, Bohemian Massif. |
1992 |
| details |
Ashgillian |
|
China(Zeijing) |
He,S.-C. et al. Late Ordovician acritarchs from changwu Formation of Jiangshan, Zhejiag, China |
1993 |
| details |
Caradocian |
Ashgillian |
E.Germany(Karl Marx) |
Heuse,T. Upper Ordovician acritarchs from the Frankenberger Zwischengebirge (Saxony) eastern Germany |
1994 |
| details |
Homerian |
|
England(Shropshire) |
Turner,N. et al. A palynological study of the Lower Carboniferous Lydebrook Sandstone and adjacent Late Wenlock and Langsettian Strata, Shropshire, England. |
1995 |
| details |
Wenlockian |
|
Sweden(Gotland) |
Jeppson,L. et al. Wenlock (Silurian) oceanic episodes and events. |
1995 |
| details |
Llandeilian |
Caradocian |
Iran |
Reitz,E. et al. Ordovician acritarchs from the Banestan Kerman area, Central Iran Paleobiogeographical evidence for a Warm Water environment |
1995 |
| details |
Llandoverian |
|
Iran |
Ghavidel-Syooki,M. Acritarch biostratigraphy of the Palaeozoic rock units in the Zagros Basin, Southern Iran. (In: Commision Internationale de microflore du Paleozoique (CIMP) Acritarch Subcommision: O.Fatka and T.Servais, editors) |
1996 |
| details |
Rhuddanian |
Aeronian |
Norway |
Smelror,M. et al. Upper Ordovician-Lower Silurian strata and biota from offshore South Norway |
1997 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |
| details |
Tremadocian |
|
Poland |
Bednarczyk,W.S. Stratigraphic position of acritarchs from the Lowermost Ordovician of the Holy Cross (Gory Swietokrzyskie) Mts in the light of conodonts studies. |
1998 |
| details |
Early Silurian |
Middle Silurian |
Iran |
Ghavidel-Syooki,M. Acritarch biostratigraphy and palaeogeography of Lower Palaeozoic rock units at Southwestern Kashmar City, Central Iran. |
1998 |
| details |
Late Wenlockian |
|
Poland |
Masiak,M. et al. Evolution of the acritarch diversity in the Upper Wenlock: An example of strategy in a context of biotic crisis. |
1998 |
| details |
Late Ludlovian |
|
England(Herefordshire) |
Wetherall,P.M. et al. Palynology, biostratigraphy, and depositional environments around the Ludlow-Pridoli boundary at Woodbury Quarry, Herefordshire, England. |
1999 |
| details |
Telychian |
|
Saudi Arabia |
Le H©riss©,A. Characteristics of the acritarch recovery in the early Silurian of Saudi Arabia. |
2000 |