| original |
Vendian |
Early Cambrian |
USSR(Siberia) |
Rudavskaya,V.A. Acritarchs from the Riphaen-Cambrian boundary deposits in the South of East Siberia. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) |
1973 |
| details |
Late Proterozoic |
|
USSR(Siberia) |
Rudavskaya,V.A. Microplant fossil assemblages and their relation to the conditions of sedimentation. (In:Mikrofitofossilii Proterozoya i Rannego Paleozoya SSSR. B.V.Timofeev, editor) |
1974 |
| details |
Early Cambrian |
|
USSR(Yakut ASSR) |
Faizulina,Z.K. et al. Biostratigraphy of the Late Precambrian and Early Cambrian sediments in the Nepsko-Botuobinskii Region |
1982 |
| details |
Vendian |
Early Cambrian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |