| details |
Late Sinian |
Early Ordovician |
USSR(Belorussian SSR) |
Timofeev,B.V. On the age of the Ostrog Beds in Volhynia and their position in the Palaozoic |
1956 |
| details |
Sinian |
|
USSR(Siberia) |
Vinogradov,V.A. et al. Sinian deposits of the north part of the Kharaulakh Mountains. (In: Collection of Articles on the geology of the Arctic #9) |
1958 |
| original |
Vendian |
Middle Cambrian |
USSR(Pre-Baltic) |
Timofeev,B.V. Ancient flora of the Prebaltic Region and its stratigraphic significance |
1959 |
| details |
Late Sinian |
|
USSR(Irkutskaya Oblast) |
Rudavskaya,V.A. et al. On the stratigraphy of Cambrian deposits of Pre-Baikal |
1963 |
| details |
Nd |
|
USSR(Russian Platform) |
Andreeva,E.M. et al. Palaeopalynology. (Three Volumes: Volume I: Methods. Volume II: Complexes of palynomorphs of the Precambrian-Holocene of the USSR. Volume III: Figures and Plates. Editor-I.M. Pokrovskaya) |
1966 |
| details |
Vendian |
Middle Cambrian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |