| details |
Late Cambrian |
|
Arkansas |
Wood,G.D. et al. Organic-walled microfossils from the Cambrian Davis Shale and Bonneterre Formation, Mid-Continent United States;Integration of palynological, geological and geophysical disciplines in the exploration of the Reelfoot Rift area |
1989 |
| details |
Late Cambrian |
|
Missouri |
Wood,G.D. et al. Organic-walled microfossils from the Cambrian Davis Shale and Bonneterre Formation, Mid-Continent United States;Integration of palynological, geological and geophysical disciplines in the exploration of the Reelfoot Rift area |
1989 |
| details |
Middle Cambrian |
Late Cambrian |
Missouri |
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 |
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 Tremadocian |
Early Arenigian |
Wales(Carmarthenshire) |
Molyneux,S.G. et al. Acritarchs dating of Latest Tremadoc - Earliest Arenig (Early Ordovician) sediments in the Carmarthen District, South Wales. |
1989 |
| details |
Ashgillian |
Early Llandoverian |
Czechoslovakia |
VavrdovЎ,M. New acritarchs and miospores from the Late Ordovician of Hlasna Treban, Czechoslovakia. |
1989 |
| details |
Late Cambrian |
|
USSR(Estonian SSR) |
Mens,K.A. et al. Cambrian-Ordovician boundary Beds at Maekalda, Tallinn, North Estonia. |
1989 |
| details |
Late Tremadocian |
Early Arenigian |
England(Cumberland) |
Cooper,A.H. et al. The age and correlation of Skiddaw Group (Early Ordovician), sediments in the Cross Fell Inlier (Northern England) |
1990 |
| details |
Middle Cambrian |
Late Cambrian |
USSR(Estonian SSR) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| details |
Middle Cambrian |
Late Cambrian |
USSR(Leningrad) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| details |
Middle Cambrian |
Late Cambrian |
USSR(Yaroslav) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| details |
Late Cambrian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Middle Cambrian |
Late Cambrian |
Canada(Newfoundland) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| details |
Late Cambrian |
|
Libya |
Albani,R. et al. Palynostratigraphy (Acritarchs) of some Cambrian Beds from the Rhadames (Ghadamis) Basin (western Libya-southern Tunisia). |
1991 |
| details |
Late Cambrian |
|
Italy(Sardinia) |
Di Milia,A. Upper Cambrian acritarchs from the Solanas Sandstone Formation, Central Sardinia, Italy. |
1991 |
| details |
Middle Cambrian |
Late Cambrian |
Belgium |
Vanguestaine,M. The biostratigraphy of Cambrian-Ordovician acritarches of Belgium and adjacent area; Synthese and perspective. |
1992 |
| details |
Middle Cambrian |
Late Cambrian |
Belgium |
Ribecai,C. et al. Latest Middle-Late Cambrian acritarchs from Belgium and northern France. (In: Contributions to Acritarch and Chitinozoan Research. S.G.Molyneux and K.J.Doring, editors) |
1993 |