| details |
Proterozoic |
Middle Ordovician |
Europe |
Schopf,J.M. Early Paleozoic palynomorphs. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |
| details |
Proterozoic |
Middle Ordovician |
North America |
Schopf,J.M. Early Paleozoic palynomorphs. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |
| details |
Late Sinian |
Late Cambrian |
USSR(Irkutskaya Oblast) |
Rudavskaya,V.A. et al. On the stratigraphy of Cambrian deposits of Pre-Baikal |
1963 |
| details |
Cambrian |
Early Ordovician |
Romania |
Visarion,A. et al. Determination of the age of a Crystalline Shales from the Apuseni Mountains, (Romania). |
1971 |
| 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 |
Precambriam |
Early Ordovician |
Poland |
Jagielska,L. Microspores of the older Palaeozoic from Bore-Hole Uszkowce 1. |
1962 |
| details |
Proterozoic |
Early Ordovician |
USSR(Karelian ASSR) |
Timofeev,B.V. Stratigraphy and correlation of the Precambrian |
1960 |
| original |
Proterozoic |
Early Ordovician |
USSR(Pre-Baltic) |
Timofeev,B.V. Ancient flora of the Prebaltic Region and its stratigraphic significance |
1959 |
| details |
Proterozoic |
Early Ordovician |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Sinian |
Early Cambrian |
USSR(Yakut ASSR) |
Timofeev,B.V. Stratigraphy, palaeontological characteristics and sectional comparison of Sinian and Cambrian deposits of the northeastern slopes of the Aldansk and the Southern Slopes of the Anabarsk Shields. (In: Material on the geology and petroleum of Yakut ASSR) |
1959 |
| details |
Late Proterozoic |
Early Cambrian |
USSR(Buryat ASSR) |
Timofeev,B.V. On the age of the sedimentary-Metamorphic Layers of eastern Transbaikal. (In: Geological Symposium #5) |
1960 |
| details |
Proterozoic |
Early Cambrian |
USSR(Siberia) |
Timofeev,B.V. Spores of Proterozoic and Early Paleozoic deposits of eastern Siberia and their stratigraphic significance |
1956 |
| details |
Late Precambrian |
Early Cambrian |
USSR(Yablonov Khrebet) |
Spizharsky,T.N. Late Precambrian deposits of the Siberian Platform |
1958 |
| details |
Vendian |
Early Cambrian |
Poland |
Jagielska,L. Microflora in the Eocambrian and Lower Cambrian deposits in the eastern area of Poland |
1966 |
| details |
Late Precambrian |
Early Cambrian |
Poland |
Jagielska,L. New data on the Eocambrian and Lowermost Cambrian microflora from the Klimontow Anticlinorium. |
1965 |
| details |
Vendian |
Cambrian |
W.Germany(Niedersachsen) |
Timofeev,B.V. The age of a graywache from Lower Saxony. Micropaleontological investigation of samples from the Graywacke of Weesensteiner and Lausitzer. |
1958 |
| details |
Vendian |
|
Poland |
Zak,C. Areas of occurrence and stratigraphy-The Gory Swie Tokrzyskie and the Carpathian Foreland |
1970 |