| details |
Late Ludlovian |
|
Spain |
Diez,M.D.C.R. et al. Acritarchs and miospores from the Ludlovian of Corniero, Leon, Spain. |
1976 |
| details |
Late Ludlovian |
Gedinnian |
Spain |
Cramer,F.H. et al. Robledo and Arroyacas Formation, (Arroyo de Las Arroyacas, Province of Palencia, Spain) palynologically dated as Late Silurian. |
1977 |
| details |
Famennian |
|
Paraguay |
Pжthe de Baldis,E.D. Acritarchs and chitinozoans from the Late Devonian of Paraguay. |
1978 |
| details |
Early Ludlovian |
|
New York |
Miller,M.A. et al. Ludlow age acritarchs and spores from the Pittsford Shale, New York. |
1988 |
| details |
Ashgillian |
|
Bolivia |
Gagnier,P.Y. et al. New paleontological and geological data on the Ordovician and Silurian of Bolivia |
1996 |
| details |
Caradocian |
Ludlovian |
Nepal |
Sinha,H.N. et al. Record of Prolific and Indubitable acritarchs from the Lower Paleozoic strata of the Tethyan Garhwal Himalaya and age implication |
1996 |
| details |
Middle Arenigian |
|
China(Szechwan) |
Fatka,O. et al. Morphologic variability in two populations of Arbusculidium filamentosum (Vavrdova 1965), Vavrdova,1972. |
1999 |
| details |
Late Ludlovian |
|
Libya |
Le H©riss©,A. Paleoecology, biostratigraphy and biogeography of late Silurian to early Devonian acritarchs and prasinophycean phycomata in well A161, Western Libya, North Africa |
2002 |
| details |
Late Ludlovian |
|
Libya |
Le H©riss©,A. Paleoecology, biostratigraphy and biogeography of late Silurian to early Devonian acritarchs and prasinophycean phycomata in well A161, Western Libya, North Africa |
2002 |
| details |
Botomian |
|
Australia(S.Australia) |
Jago,J.B. et al. Correlation within early Palaeozoic basins of eastern South Australia. |
2002 |
| details |
Ashgillian |
|
Libya |
Abuhmida,F. et al. Palynostratigraphy and paleoenvironmental study of Middle and Upper Ordovician sequences in NW Sirt Basin, Libya. (In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |
| details |
Gorstian |
|
Sweden(Gotland) |
Stricanne,L. et al. Acritarch distribution along an inshore-offshore transect in the Gorstian (lower Ludlow) of Gotland, Sweden |
2004 |