| details |
Early Cambrian |
|
USSR(Russian Platform) |
Umnova,N.I. et al. Acritarch assemblages from the Cambrian and Early Ordovician sediments of western and northwestern Russian Platform. (In: Palynology research in Byelorussia and other Regions of the USSR) |
1971 |
| details |
Precambriam |
|
USSR(Russian Platform) |
Pykhova,N.G. Acritarchs of Precambrian sections of southern Urals, Siberia, Eastern European Platform and their stratigraphic significance. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) |
1973 |
| details |
Late Precambrian |
Early Cambrian |
India(Mysore) |
Venkatachala,B.S. Precambrian palynology;a review. (In: Proceedings of Colloquium on Paleontological Studies in Southern Region. M.V.A. Sastry et al editors) |
1979 |