| details |
Wenlockian |
|
Wales |
Aldridge,R.J. et al. Distribution of microfossil Groups across the Wenlock Shelf of the Welsh Basin. |
1981 |
| details |
Rhuddanian |
Wenlockian |
Wales |
Martin,F. Late Ordovician and Early Silurian acritarchs. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors) |
1988 |
| details |
Telychian |
Ludfordian |
Wales |
Martin,F. Acritarchs. (In: A Global Standard for the Silurian System. C.H. Holland and M.G.Bassett, editors) |
1989 |
| details |
Early Emsian |
|
W.Germany(N.Rhine) |
Edalat,B. Spore assemblages and acritarchs from the Lower Devonian (Emsian) of the Southern Bergishen Land |
1974 |
| details |
Wenlockian |
|
USSR(Ukrainian SSR) |
Martin,F. Acritarchs. (In: A Global Standard for the Silurian System. C.H. Holland and M.G.Bassett, editors) |
1989 |
| details |
Ashgillian |
Wenlockian |
USA(Appalachian Bn.) |
Martin,F. Late Ordovician and Early Silurian acritarchs. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors) |
1988 |
| details |
Llandoverian |
|
USA |
Martin,F. Acritarchs. (In: A Global Standard for the Silurian System. C.H. Holland and M.G.Bassett, editors) |
1989 |
| original |
Middle Ordovician |
|
Sweden |
GŠ³rka,H. Middle Ordovician (Viruan) acritarchs and Prasinophyceae from the Smedsby Gard No.1 borehole in (Gotland, Sweden). |
1987 |
| details |
Tremadocian |
|
Spain |
Fombella Blanco,M.A. Chitinizoa of the Tremadocian Oville Formation, Leon Province. |
1983 |
| details |
Middle Ordovician |
Late Ordovician |
Spain |
Fombella Blanco,M.A. Palynologic age of the Blastomilonitic Grabben, West Galice, Spain. |
1984 |
| details |
Telychian |
Early Wenlockian |
Scotland(Dumfries) |
White,D.E. et al. Biostratigraphy of Late Llandovery (Telychian) and Wenlock Turbiditic sequences in the southwest Southern Uplands, Scotland. |
1992 |
| details |
Llandoverian |
Wenlockian |
Poland |
Jachowicz,M. Successions of the acritarcha assemblages in the Silurian sediments in Eastern Pomerania (Northern Poland). |
1998 |
| details |
Early Llandoverian |
|
Poland |
Masiak,M. et al. Ordovician-Silurian boundary in the Bardo Syncline, Holy Cross Mountains, Poland - New data on fossil assemblages and sedimentary succession. |
2003 |
| details |
Llandoverian |
|
Poland |
Masiak,M. et al. Ordovician-Silurian boundary in the Bardo Syncline, Holy Cross Mountains, Poland-new data on fossil assemblages and sedimentary succession. |
2003 |
| details |
Ashgillian |
|
Oklahoma |
Wang,W.-M. Paleofloristic and paleoclimatic implications of Neogene palynofloras in China |
1994 |
| details |
Early Gothlandian |
|
Norway |
Dorning,K.J. et al. A preliminary investigation of palynological assemblages from the Early Silurian of Ringerike. |
1982 |
| details |
Telychian |
|
Norway |
Martin,F. Acritarchs. (In: A Global Standard for the Silurian System. C.H. Holland and M.G.Bassett, editors) |
1989 |