| details |
Middle Cambrian |
Late Cambrian |
Arkansas |
Wood,G.D. et al. Cambrian palynomorphs from the warm-water provincial realm, Bonneterre and Davis Formations of Missouri and Arkansas (Reelfoot rift area); biostratigraphy, paleoecology and thermal maturity. (In: Field guide to Upper Cambrian of southeastern Missouri; stratigraphy, sedimentology and economic geology. Department of Geology and Geophysics, University of Missouri. J.M.Gregg et al, editors) |
1989 |
| details |
Late Llandoverian |
Early Wenlockian |
S.Ireland(Clare) |
Williams,D.M. et al. Implications of the new microfloral evidence from the Clew Bay complex for Silurian relationships in the Western Irish Caledonides. |
1996 |
| details |
Givetian |
|
Ohio |
Wicander,R. et al. Systematics and biostratigraphy of the organic-walled microphytoplankton from the Middle Devonian, (Givetian), Silica Formation, Ohio, USA. |
1981 |
| original |
Eifelian |
|
Ohio |
Wicander,R. et al. Organic-walled microphytoplankton abundance and stratigraphic distribution from the Middle Devonian Columbus and Delaware Limestones of the Hamilton Quarry, Marion County, Ohio |
1983 |
| details |
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 |
Rupelian |
|
W.Germany(Rhineland) |
Weiler,H. Inventory of the phytoplanctons (dinoflagellate cysts, Prasinophyceae and Calciodinelloideae) in the "Pre-Aquitanian" Tertiary of the Mainz Basin. |
1982 |
| details |
Late Cambrian |
|
USSR(Leningrad) |
Volkova,N.A. et al. New Upper Cambrian acritarchs from the Leningrad Oblast, (Ladoga Formation). |
1985 |
| details |
Late Cambrian |
|
USSR(Leningrad) |
Volkova,N.A. et al. An assemblage of acritarchs from the Lower Part of Obolus Sandstones on the Izhora River. (In: Problems of Modern Palynology. A.F.Chlonova, editor) |
1984 |
| details |
Early Tremadocian |
|
USSR(Estonian SSR) |
Volkova,N.A. New species of acritarchs from the Lower Tremadocian of Estonia. (In: Palynology in the USSR. A.F.Chlonova, editor) |
1988 |
| details |
Early Ordovician |
|
USSR(Estonian SSR) |
Volkova,N.A. et al. Distribution of acritarchs in the Cambrian - Ordovician boundary Beds of the Suhkrumagi section (North Estonia). |
1988 |
| details |
Late Cambrian |
|
USSR(Leningrad) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| details |
Tremadocian |
|
Estonia |
Volkova,N.A. Acritarchs from the Cambrian-Ordovician boundary sediments of northern Estonia |
1989 |
| details |
Late Cambrian |
Early Tremadocian |
USSR(Estonian SSR) |
Volkova,N.A. Acritarchs of the Desposits of the Cambrian-Ordovician boundary northern Estonia |
1989 |
| details |
Tithonian |
|
|
Volkheimer,W. et al. Stratigraphic palynology of the Tithonian (Vaca Muerta Formation) at Caichigue (Neuqu©n Basin). Part B; Marine species. |
1977 |
| details |
Sinemurian |
Early Toarcian |
|
Volkheimer,W. Liassic microfloras of the Neuqu©n Basin, (Argentina): Relations with other Gondwanic Areas. |
1980 |
| details |
Sinemurian |
Early Toarcian |
|
Volkheimer,W. Liassic microfloras of the Neuqu©n Basin, (Argentina): Relations with other Gondwanic Areas. |
1980 |
| details |
Sinemurian |
|
Nd |
Volkheimer,W. Liassic microfloras of the Neuqu©n Basin, (Argentina): Relations with other Gondwanic Areas. |
1980 |