| details |
Early Devonian |
|
China(Szechwan) |
Xiang,L. et al. Early Devonian graptolite-bearing formation and its paleontological features at Baoxing County, Sichuan, (Szechwan). |
1975 |
| details |
Pridolian |
|
England(Shropshire) |
White,D.E. et al. The Pridoli Series in the Welsh Borderland and South-Central Wales. (In: A Global Standard for the Silurian System. C.H. Holland and M.G.Bassett, editors) |
1989 |
| details |
Early Pridolian |
|
England(Herefordshire) |
Wetherall,P.M. et al. Palynology, biostratigraphy, and depositional environments around the Ludlow-Pridoli boundary at Woodbury Quarry, Herefordshire, England. |
1999 |
| details |
Ludlovian |
Gedinnian |
Libya |
Tekbali,A.O. et al. Silurian spores, acritarchs and chitinozoans from the Bani Walid Borehole of the Ghadamis Basin, Northwest Libya. (In: The Geology of Libya. M.J.Salem et al, editors) |
1991 |
| details |
Late Ludlovian |
|
Tunisia |
Sarjeant,W.A.S. Arpylorus antiguus Calandra, emend., a dinoflagellate cyst from the Upper Silurian. |
1978 |
| details |
Ludlovian |
|
Libya |
Rubinstein,C.V. et al. Miospore assemblages from the Silurian - Devonian boundary, in Borehole A1-61, Ghadamis Basin, Libya. |
2002 |
| details |
Late Ludlovian |
Downtonian |
England |
Richardson,J.B. et al. Acritarchs, miospores and correlation of the Ludlovian - Downtonian and Silurian - Devonian boundaries. |
1981 |
| details |
Late Ludlovian |
Downtonian |
Wales |
Richardson,J.B. et al. Acritarchs, miospores and correlation of the Ludlovian - Downtonian and Silurian - Devonian boundaries. |
1981 |
| details |
Downtonian |
|
Libya |
Richardson,J.B. et al. Acritarchs, miospores and correlation of the Ludlovian - Downtonian and Silurian - Devonian boundaries. |
1981 |
| details |
Late Gorstian |
Early Downtonian |
Northern Hemisphere |
Richardson,J.B. et al. Silurian and Devonian spore zones of the Old Red Sandstone continent and adjacent regions. |
1986 |
| details |
Nd |
|
England(Herefordshire) |
Richardson,J.B. et al. Silurian and Devonian spore zones of the Old Red Sandstone continent and adjacent regions. |
1986 |
| details |
Nd |
|
England(Worcestershire) |
Richardson,J.B. et al. Silurian and Devonian spore zones of the Old Red Sandstone continent and adjacent regions. |
1986 |
| original |
Middle Ludlovian |
Downtonian |
Wales(Carmarthenshire) |
Richardson,J.B. et al. Upper Silurian and Lower Devonian spore assemblages from the Welsh Borderland and South Wales |
1969 |
| details |
Silurian |
|
Libya |
Richardson,J.B. et al. Silurian palynomorphs from the Tanezzuft and Acacus Formations, Tripolitania, North Africa. |
1973 |
| details |
Downtonian |
|
Africa(Sahara) |
Richardson,J.B. The stratigraphic utilization of some Silurian and Devonian miospore species in the Northern Hemisphere. |
1974 |
| details |
Ludlovian |
Downtonian |
England |
Richardson,J.B. The stratigraphic utilization of some Silurian and Devonian miospore species in the Northern Hemisphere. |
1974 |
| details |
Ludlovian |
Downtonian |
Wales |
Richardson,J.B. The stratigraphic utilization of some Silurian and Devonian miospore species in the Northern Hemisphere. |
1974 |