| details |
Llandoverian |
|
USA(Eastern) |
Colbath,G.K. Abrupt terminal Ordovician extinction in phytoplankton associations, Southern Appalachians. |
1986 |
| details |
Rhuddanian |
Early Sheinwoodian |
Norway |
Smelror,M. Early Silurian acritarchs and Prasinophycean algae from the Ringerike Districkt, Oslo Region (Norway). |
1987 |
| details |
Ludlovian |
|
Libya |
Wood,G.D. et al. A unique new genus of acritarcha, (organic-walled microphytoplankton), from the Tanezzuft Formation (Silurian) of Libya. |
1987 |
| details |
Gedinnian |
|
France(Maine-et-Loire) |
Moreau-Benoit,A. et al. Confirmation of the Silurian and the discovery of the Lower Devonian by palynoplanktology in the slates and sands at the eastern end of the Ancenis Basin (south-east of the Armoricain Massif). |
1987 |
| details |
Llandoverian |
Wenlockian |
Austria |
Priewalder,H. Acritarchs of the Silurian of the Cellon section (Karnische Alpen, Austria). |
1987 |
| details |
Llandoverian |
|
USSR(Siberia) |
Zaslavskaya,N.M. et al. Correlation significance of palynomorphs from the Lower Silurian of the Siberian Platform. (In: Palynology in the USSR. A.F.Chlonova, editor) |
1988 |
| details |
Late Llandoverian |
|
Saudi Arabia |
McClure,H.A. Chitinozoan and acritarch assemblages stratigraphy and biogeography of the Early Palaeozoic of Northw West Arabia |
1988 |
| details |
Emsian |
Eifelian |
Georgia |
Ravn,R.L. et al. Devonian miospores and reworked acritarchs from southeastern Georgia, USA. |
1988 |
| details |
Late Ordovician |
|
Czechoslovakia |
VavrdovЎ,M. Further acritarchs and terrestrial plant remains from the Late Orovician at Hlasna Treban (Czechoslovakia) |
1988 |
| details |
Siegenian |
|
Libya |
Moreau-Benoit,A. et al. Palynology and stratigraphy of a Lower Devonian type section of eastern Sahara (Rhadames Basin, Libye) |
1988 |
| details |
Late Llandoverian |
|
Czechoslovakia |
Dufka,P. et al. Upper Llandoverian acritarchs from Karlstejn, Barrandian area Bohemian Massif |
1988 |
| details |
Ashgillian |
Llandoverian |
Libya |
Hill,P.J. et al. Biostratigraphy, palynofacies and provincialism of Late Ordovician-Early Silurian acritarchs from northeastern Libya. (In: The Subsurface Palynostratigraphy of Northeast Libya. Special Publication of the University of Garryounis, Libya. E.Arnauti et al, editors) |
1989 |
| details |
Early Lochkovian |
Early Emsian |
France |
Moreau-Benoit,A. et al. New palynostratigraphical data on the Armorican Lower Devonian |
1989 |
| details |
Middle Sheinwoodian |
Early Homerian |
England(Northumberland) |
Barron,H.F. Mid-Wenlock acritarchs from a Silurian Inlier in the Cheviot Hills, northeast England. |
1989 |
| details |
Ludlovian |
|
Argentina(San Juan) |
Rubinstein,C.V. Acritarchs of the Late Silurian of the Jachal River in the Province of San Juan, Republica of Argentina Part 1: Subgroup Acanthomorphitae and Sphaeromorphitae. |
1989 |
| details |
Nd |
|
Nd |
Le H©riss©,A. Acritarchs and cysts of Prasinophycean algae of the Silurian of Gotland, Sweden. |
1989 |
| details |
Llandoverian |
Ludlovian |
Sweden |
Le H©riss©,A. Acritarchs and cysts of Prasinophycean algae of the Silurian of Gotland, Sweden. |
1989 |