details |
Early Cambrian |
Middle Cambrian |
Finland |
Hagenfeldt,S.E. Acritarch assemblages of Early and Middle Cambrian age in the Baltic Depression and South-Central Sweden |
1988 |
details |
Early Cambrian |
Middle Cambrian |
Canada(Quebec) |
Lavoie,D. et al. Stratigraphic framework for the Cambrian-Ordovician rift and passive margin successions from southern Quebec to western Newfoundland. |
2003 |
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 |
Early Cambrian |
|
Denmark |
Moczydlowska,M. et al. Early Cambrian acritarchs from Scandinavia and Poland |
1988 |
details |
Early Cambrian |
|
Poland |
Moczydlowska,M. et al. Early Cambrian acritarchs from Scandinavia and Poland |
1988 |
details |
Early Cambrian |
|
Greenland |
Moczydlowska,M. et al. Early Cambrian acritarchs from Scandinavia and Poland |
1988 |
details |
Early Cambrian |
|
Denmark |
Moczydlowska,M. et al. Phytoplankton from the Lower Cambrian Laesa Formation on Bornholm, Denmark; Biostratigraphy and palaeoenvironmental constraints. |
1992 |
details |
Early Cambrian |
|
Denmark |
Vidal,G. et al. Patterns of phytoplankton radiation across the Precambrian-Cambrian boundary. |
1992 |
details |
Early Cambrian |
|
Spain |
Palacios,T. et al. Lower Cambrian acritarchs from northern Spain; the Precambrian -Cambrian boundary and biostratigraphic implications |
1992 |
details |
Early Cambrian |
|
England(Shropshire) |
Wright,A.E. et al. The Lower Cambrian Wrekin Quartzite and age of its unconformity on the Ercall Granophyre |
1993 |
details |
Early Cambrian |
|
Greenland |
Vidal,G. et al. Acritarchs from the Lower Cambrian Vuen Formation in North Greenland |
1993 |
details |
Early Cambrian |
|
Sweden(Gotland) |
Hagenfeldt,S.E. Middle Cambrian acritarchs from the Baltic Depression and South-Central Sweden, taxonomy and biostratigraphy. |
1989 |
details |
Early Cambrian |
|
Finland |
Hagenfeldt,S.E. Middle Cambrian acritarchs from the Baltic Depression and South-Central Sweden, taxonomy and biostratigraphy. |
1989 |
details |
Early Cambrian |
|
Poland |
Moczydlowska,M. Upper Proterozoic and Lower Cambrian acritarchs from Poland-Micropalaeontology biostratigraphy and thermal study |
1989 |
details |
Early Cambrian |
|
Sweden(Gotland) |
Hagenfeldt,S.E. Lower Cambrian acritarchs from the Baltic Depression and South-Central Sweden, taxonomy and biostratigraphy. |
1989 |
details |
Early Cambrian |
|
Finland |
Hagenfeldt,S.E. Lower Cambrian acritarchs from the Baltic Depression and South-Central Sweden, taxonomy and biostratigraphy. |
1989 |