| details |
Early 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 |
|
USSR(Estonian SSR) |
Mens,K.A. et al. Environmental control in the distribution of acritarchs in the Lontova Stage of Estonia. |
1981 |
| details |
Early Cambrian |
|
USSR(Baltic) |
Pa?keviciene,L. On the stratigraphy of the Rovno Stage in the northwestern part of the East European Platform. (In: Vendian and Cambrian Facies and Stratigraphy of the Western Part of East European Platform. E.A.Pirrus, editor) |
1986 |
| details |
Early Sinian |
|
China |
Xing,Y. et al. Evolution of the terminal Precambrian Biotas and its geological significance |
1989 |