| details |
Vendian |
Early Cambrian |
USSR(Irkutskaya Oblast) |
Akulcheva,Z.A. et al. Motsk deposits and their Analogues in the Irkutsk Amphitheatre. (In: Transitional deposits of the Pre-Cambrian and Cambrian of the Siberian Platform. (Biostratigraphy, paleontology, conditions of Formation.) |
1981 |
| details |
Ordovician |
Silurian |
India(Karnataka) |
Viswanathiah,M.N. et al. Microfossils from Konkonkop Dolomite of Katageri Formation Badami Group, Karnataka, South India. |
1984 |
| details |
Nd |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Riphean |
|
USSR(Siberia) |
Meyerhoff,A.A. Geology and petroleum fields in Proterozoic and Lower Cambrian Strata, Lena-Tunguska Petroleum Province, Eastern Siberia, USSR. (In: Giant Oil and Gas Fields of the Decade 1968-1978. M.T. Halbouty, editor) |
1980 |
| details |
Late Ordovician |
Early Gothlandian |
India(Karnataka) |
Viswanathiah,M.N. et al. Acritarchs and associated microplankton from the Katageri Formation of the Badami Group, South India. |
1984 |
| details |
Late Cambrian |
|
USSR(Siberia) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Early Cambrian |
|
USSR(Irkutskaya Oblast) |
Faizulina,Z.K. et al. Microfossils from the Lower Cambrian deposits of the Irkutsk Amphitheatre. (In: Microfossils of the Oldest Deposits) |
1973 |
| original |
Early Cambrian |
|
USSR(Irkutskaya Oblast) |
Rudavskaya,V.A. et al. On the stratigraphy of Cambrian deposits of Pre-Baikal |
1963 |
| details |
Early Cambrian |
|
USSR(Irkutskaya Oblast) |
Fayzulina,Z.Kh. et al. Microfossils from the Lower Cambrian deposits of the Irkutsk Amphitheatre. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) |
1973 |
| details |
Cambrian |
|
USSR(Yakut ASSR) |
Popova,Z.P. et al. Organic remains in Petroleum of the Markovo Field |
1965 |