| original |
Ludlovian |
|
Spain |
Cramer,F.H. Palynology of Silurian and Devonian rocks in northwest Spain. |
1966 |
| details |
Silurian |
Devonian |
Spain |
Boureau,E. et al. Are there vascular plants in the Silurian. |
1973 |
| details |
Lochkovian |
|
France(Mayenne) |
d'Erceville,M.A. Spores from Silurian-Devonian formations from a cutting at Saint-Pierre-sur-Erve (Synclinorium Median Armorcain). |
1979 |
| details |
Late Downtonian |
Early Dittonian |
France(Mayenne) |
d'Erceville,M.A. The spores of Silurian - Devonian Formations of St.Pierre-sur-Erve, (Massif Armoricain). |
1979 |
| 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 |
Late Ludlovian |
|
Libya |
Richardson,J.B. et al. Acritarchs, miospores and correlation of the Ludlovian - Downtonian and Silurian - Devonian boundaries. |
1981 |
| details |
Late Ludlovian |
Downtonian |
USSR(Estonian SSR) |
Richardson,J.B. et al. Acritarchs, miospores and correlation of the Ludlovian - Downtonian and Silurian - Devonian boundaries. |
1981 |
| details |
Gedinnian |
|
USSR(European) |
Arkhangelskaya,A.D. A detailed biostratigraphic classification of Early Devonian deposits of European USSR, (Based on plant spores) |
1985 |
| details |
Late Ludfordian |
Early Gedinnian |
Northern Hemisphere |
Richardson,J.B. et al. Silurian and Devonian spore zones of the Old Red Sandstone continent and adjacent regions. |
1986 |
| details |
Wenlockian |
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 |
Pridolian |
Argentina(San Juan) |
Rubinstein,C.V. Palynology of the Upper Silurian, (Los Espejos Formation) of Loma de Los Piojos, San Juan Precordillera, Argentina. |
1992 |
| details |
Late Ludlovian |
|
Argentina(San Juan) |
Rubinstein,C.V. Acritarchs from the Upper Silurian of San Juan, Argentina: Biostratigraphy and palaeobiogeography. (In: Contributions to Acritarch and Chitinozoan Research. S.G.Molyneux and K.J.Doring, editors) |
1993 |
| details |
Middle Ludlovian |
Middle Pridolian |
Argentina(San Juan) |
Rubinstein,C.V. Palynological investigations in the Lower Paleozoic of Argentina |
1993 |
| details |
Emsian |
|
Colombia |
Grosser,J.R. et al. Palynological investigation of the Base of the Devonian of the Floresta Massif, Cordillera Oriental, Colombia, South America |
1994 |
| details |
Ashgillian |
Pragian |
Saudi Arabia |
Steemans,P. Silurian and Lower Emsian spores in Saudi Arabia. (In: Palaeozoic Palynostratigraphy of the Kingdom of Saudi Arabia. B.Owens et al, editors) |
1995 |
| details |
Late Ludlovian |
Pridolian |
Argentina |
Rubinstein,C.V. Acritarchs from the Upper Silurian of Argentina:Their relationship with Gondwana |
1995 |