| details |
Early Cambrian |
|
USSR(Leningrad) |
Yankauskas,T.V. New evidence to the geological evolution of Cis-Baltic Regions in Cambrian time |
1975 |
| original |
Early Cambrian |
|
USSR(Baltic) |
Yankauskas,T.V. New Lower Cambrian acritarchs of the Baltic Region |
1975 |
| details |
Late Cambrian |
|
USSR(Baltic) |
Mens,K.A. et al. Southern Slope of the Baltic Shield. (In: Stratigraphy of Upper Precambrian and Cambrian deposits on the western part of the East European Platform. B.M.Keller and A.Y.Rozanov, editors) |
1979 |
| details |
Early Cambrian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |