| original |
Early Cambrian |
|
USSR(Estonian SSR) |
Volkova,N.A. Acritarchs of the Precambrian and Lower Cambrian deposits of Estonia. (In: Problems related to the boundary layers of the Riphean and Cambrian of the Russian Platform, the Urals and Kazakhstan -By-N.A.Volkova et al) |
1968 |
| details |
Early Cambrian |
Middle Cambrian |
Baltic Sea |
Hagenfeldt,S.E. Lower Cambrian acritarchs from the Baltic Depression and South-Central Sweden, taxonomy and biostratigraphy. |
1989 |
| details |
Early Cambrian |
Middle Cambrian |
Finland |
Hagenfeldt,S.E. Lower Cambrian acritarchs from the Baltic Depression and South-Central Sweden, taxonomy and biostratigraphy. |
1989 |
| details |
Early Cambrian |
Middle Cambrian |
Bothnian Gulf/Sea |
Hagenfeldt,S.E. Lower Cambrian acritarchs from the Baltic Depression and South-Central Sweden, taxonomy and biostratigraphy. |
1989 |
| details |
Cambrian |
|
Poland |
Jagielska,L. Flora of the Cambrian;Microflora |
1972 |
| details |
Early Cambrian |
|
USSR(Estonian SSR) |
Mens,K.A. et al. New data on the data of the Tiskre Beds in the northwest of Estonia. |
1972 |
| details |
Early Cambrian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Cambrian |
|
Norway |
Downie,C. Acritarchs from near the Precambrian-Cambrian boundary--A preliminary account. |
1974 |
| details |
Early Cambrian |
|
Belgium |
Vanguestaine,M. Zone species of acritarchs from the Cambro-Tremadocian of Belgium and the French Ardennes. |
1974 |
| details |
Early Cambrian |
|
France(Ardennes) |
Vanguestaine,M. Zone species of acritarchs from the Cambro-Tremadocian of Belgium and the French Ardennes. |
1974 |
| details |
Early Cambrian |
|
Baltic |
Yankauskas,T.V. Revision of the age of the "Cambro-Ordoviciennes" formations of the Baltic Region by micropaleontological analysis. (Acritarchs and chitinozoes) |
1976 |
| details |
Early Cambrian |
|
Norway |
Downie,C. Intercontinental correlation of the Lower Cambrian based on acritarchs. |
1974 |
| 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 |
Middle Cambrian |
Sweden(Gotland) |
Hagenfeldt,S.E. Lower Cambrian acritarchs from the Baltic Depression and South-Central Sweden, taxonomy and biostratigraphy. |
1989 |
| details |
Early Cambrian |
|
Greenland |
Vidal,G. et al. Acritarchs from the Lower Cambrian Vuen Formation in North Greenland |
1993 |
| details |
Early Cambrian |
|
USSR(Lithuanian SSR) |
Yankauskas,T.V. Biostratigraphy of the Lower and Middle Cambrian boundary Beds of Lithuania. |
1990 |
| details |
Early Cambrian |
|
Sweden(Gotland) |
Hagenfeldt,S.E. Acritarch assemblages of Early and Middle Cambrian age in the Baltic Depression and South-Central Sweden |
1988 |