| original |
Wenlockian |
|
Pennsylvania |
Strother,P.K. et al. Plant microfossils from Llanderovian and Wenlockian rocks of Pennsylvania. |
1979 |
| original |
Ashgillian |
Rhuddanian |
Ohio |
Taylor,W.A. Ultrastructure of Lower Paleozoic dyads from Southern Ohio. II: Dyadospora murusattenuata, functional and evolutionary consideration. |
1997 |
| original |
Ashgillian |
Rhuddanian |
Ohio |
Taylor,W.A. Ultrastructure of Lower Paleozoic dyads from Southern Ohio. II: Dyadospora murusattenuata, functional and evolutionary consideration. |
1997 |
| details |
Rhuddanian |
Early Gorstian |
Saudi Arabia |
Wellman,C.H. et al. Spore assemblages from a Silurian sequence in borehole Hawiyah-151 from Saudi Arabia. |
2000 |
| details |
Rhuddanian |
|
Saudi Arabia |
Steemans,P. et al. Cryptospores and trilete spores from the Llandovery, Nuayyim-2 Borehole, Saudi Arabia. |
2000 |
| details |
Ashgillian |
Llandoverian |
England(Shropshire) |
Edwards,D. et al. Tetrads in Sporangia and spores Masses from the Upper Silurian and Lower Devonian of the Welsh Borderland |
1999 |
| details |
Pridolian |
Early Lochkovian |
England(Shropshire) |
Edwards,D. et al. Tetrads in sporangia and spore masses from Upper Silurian and Lower Devonian of the Welsh Borderland |
1999 |
| details |
Ludfordian |
|
Sweden(Gotland) |
Hagstrom,J. Land-derived palynomorphs from the Silurian of Gotland, Sweden. |
1997 |
| details |
Ashgillian |
|
China(Sinkiang Uighur) |
Wang,Y. et al. Latest Ordovician Cryptospores from Southern Xinjiang, China |
1997 |
| details |
Middle Lochkovian |
|
Wales(Gwent) |
Wellman,C.H. et al. A new plant assmblage (microfossil and megafossil) from the Lower Old Red Sandstone of the Anglo-Welsh Basin: Its implications for the palaeoecology of early terrestrial ecosystems. |
2000 |
| details |
Late Ordovician |
Early Silurian |
Nd |
Taylor,W.A. Evolutionary hypothesis of Cryptospore producing plants based on wall ultrastructure. |
2001 |
| details |
Ashgillian |
Llandoverian |
China(Zhejiang) |
Yin,L. et al. Palynomorphs from the transitional sequences between Ordovician and Silurian of northwestern Zhejiang, South China. |
2000 |
| details |
Telychian |
Sheinwoodian |
Nd |
Steemans,P. Spores and crytospores diversification from the Ordovician to the Lower Devonian. |
1998 |
| details |
Ashgillian |
|
Belgium |
Steemans,P. Ordovician cryptospores from the Oostduinkerke Borehole, Brabant Massif, Belgium. |
2001 |
| details |
Early Lochkovian |
|
Scotland(Fife) |
Lavender,K. et al. Lower Devonian spore assemblages from the Arbuthnott Group at Canterland Den in the Midland Valley of Scotland |
2002 |
| details |
Pridolian |
|
Canada(Nova Scotia) |
Beck,J.H. et al. Silurian spores and cryptospores from the Arisaig Group, Nova Scotia, Canada. |
2001 |
| details |
Llandoverian |
|
Paraguay |
Steemans,P. et al. Llandovery miospore biostratigraphy and stratigraphic evolution of the ParanŠ Basin, Paraguay - Palaeogeographic implications. |
2002 |