| details |
Early Sheinwoodian |
|
Czechoslovakia(Bohemia) |
Dufka,P. Mazuelloids from the Lower Silurian of the Prague Basin (Barrandian, Bohemian Massif) |
1991 |
| details |
Namurian |
|
Oklahoma |
Cashman,P.B. Lower Devonian chitinozoan Juveniles: Oldest fossil evidence of a Juvenile Stage in Protists, with an interpretation of their Ontogeny and relationship to all Ogromiid Foraminifera |
1991 |
| details |
Famennian |
|
England(Cornwall) |
Knight,R.R.W. et al. Devonian palynomorphs recovered from the sediments of southeast of Loe Bar, South Cornwall. Preliminary results and implications. |
1989 |
| details |
Blackriveran |
Rocklandian |
Canada(Ontario) |
Bunner,W.D. et al. A new species of Dicommopalla (Acritarcha) from the Middle Ordovician Simcoe Group of Southern Ontario, Canada. |
1989 |
| details |
Caradocian |
Ashgillian |
Morocco |
Elaouad-Debbaj,Z. Acritarchs from the Upper Ordovician (Caradoc-Ashgill) of the Anti-Atlas, Morocco. |
1988 |
| details |
Late Cambrian |
|
Spain |
Fombella Blanco,M.A. Resemblances and differences between the palynological associations of Upper Cambrian age in the northwest of Spain, (Vozmediano), and North of Africa. |
1987 |
| details |
Late Gothlandian |
|
Libya |
Buret,M.B. et al. New information given by palynoplanctological study of the Sandy/Shaly Formation (Upper Silurian of Libya, Rhadames Basin). |
1986 |
| details |
Arenigian |
Ashgillian |
USA(Western) |
Hutter,T.J. Ordovician chitinozoan zones from the Western United States |
1986 |
| details |
Late Ashgillian |
Early Llandoverian |
South Africa |
Gray,J. et al. Age of the Cedarberg Formation, South Africa and early land plant evolution. |
1986 |
| details |
Arenigian |
Llanvirnian |
Brazil(Amazonas) |
de Quadros,L.P. Occurence of Ordovician microfossils (Acritarchae) in the Alto Amazon Sub Basin, Brazil. |
1986 |
| details |
Ashgillian |
Llandoverian |
Scotland(Dumfries) |
Whelan,G.M. Acritarch and chitinozoan distribution across the type Ordovician-Silurian boundary at Dobb's Linn, Scotland |
1986 |
| details |
Ordovician |
Silurian |
Turkey |
Goodarzi,F. Reflected light microscopy of chitinozoan fragments |
1985 |
| details |
Pridolian |
|
Missouri |
Colbath,G.K. A comparison of palynological extraction techniques using samples from the Silurian Bambridge Formation, Missouri, USA. |
1985 |
| details |
Fronian |
|
Canada(Anticosti Island) |
Duffield,S.L. Land-derivied microfossils from Jupiter Formation (Upper Llandoverian) Anticosti Island,Quebec. |
1985 |
| details |
Late Caradocian |
Early Ashgillian |
Saudi Arabia |
Caputo,M.V. et al. Migration of glacial centers across Gondwana during Paleozoic Era |
1985 |
| details |
Llandoverian |
Ludlovian |
Africa(Sahara) |
Combaz,A. The "Gamma zones" of the Silurian of the Sahara Regions; Organic content and conditions of deposition. (In: Beds rich in organic matter and their conditions of deposition) |
1985 |
| details |
Middle Llandeilian |
Late Caradocian |
Canada(Quebec) |
Achab,A. Successions of chitinozoan and graptolites assemblages in some units of the Middle Ordovician of Quebec. |
1984 |