| details |
Gedinnian |
|
Bolivia |
VavrdovЎ,M. et al. Affinites of Late Devonian acritarchs from the Madre de Dios Ba, northern Bolivia: Evidence for plate tectonics interaction between eastern Laurentia and Western Gondwana. (In: Commision Internationale de microflore du Paleozoique (CIMP) Acritarch Subcommision: O.Fatka and T.Servais, editors) |
1996 |
| details |
Emsian |
|
Canada |
Kedves,M. Introduction to the palynology of Pre-Quaternary deposits |
1986 |
| details |
Emsian |
|
Canada |
Richardson,J.B. The stratigraphic utilization of some Silurian and Devonian miospore species in the Northern Hemisphere. |
1974 |
| details |
Emsian |
|
Belgium |
Richardson,J.B. The stratigraphic utilization of some Silurian and Devonian miospore species in the Northern Hemisphere. |
1974 |
| details |
Emsian |
|
Germany |
Richardson,J.B. The stratigraphic utilization of some Silurian and Devonian miospore species in the Northern Hemisphere. |
1974 |
| details |
Early Wenlockian |
|
Scotland(Lothians) |
Wellman,C.H. et al. Terrestrial plant microfossils from Silurian Inliers of the Midland Valley of Scotland |
1993 |
| details |
Early Pridolian |
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 |
Early Ludlovian |
|
Argentina(San Juan) |
Pжthe de Baldis,E.D. Paleomicroplankton and miospores of the Lower Ludlovian of the Los Espejos Formation in the cross section of Los Azuleitos, San Juan Province, Argentina. |
1981 |
| details |
Early Ludlovian |
|
New York |
Miller,M.A. et al. Ludlow age acritarchs and spores from the Pittsford Shale, New York. |
1988 |
| details |
Early Lochkovian |
|
Canada(Newfoundland) |
Burden,E.T. et al. Palynology and micropaleontology of the Clam Bank Formation (Lower Devonian) of Western Newfoundland, Canada. |
2002 |
| details |
Early Llandoverian |
|
Libya |
Deunff,J. et al. Cambrian to Ordovician palynology and stratigraphy (Northwest Libya). |
1975 |
| details |
Early Gothlandian |
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 |
Early Gothlandian |
|
Libya |
Kedves,M. Introduction to the palynology of Pre-Quaternary deposits |
1986 |
| original |
Early Gothlandian |
|
Libya |
Hoffmeister,W.S. Lower Silurian plant spores from Libya. |
1959 |
| details |
Early Gothlandian |
Early Devonian |
New York |
Cramer,F.H. Palynologic microfossils of the Middle Silurian Maplewood Shale in New York. |
1968 |
| details |
Early Gothlandian |
|
Libya |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 4. Supplement to all Groups, (Turmae). |
1966 |
| details |
Early Gorstian |
|
Argentina(San Juan) |
Rubinstein,C.V. et al. A palynomorph and graptolite biostratigraphy of the Central Precordillera Silurian Basin, Argentina. |
1999 |