| details |
Early Devonian |
|
USSR(Siberia) |
Timofeev,B.V. Ordovician and Silurian phytoplankton of the Siberian Platform. |
1963 |
| details |
Ordovician |
|
USSR(Siberia) |
Timofeev,B.V. Ordovician and Silurian phytoplankton of the Siberian Platform. |
1963 |
| details |
Middle Ordovician |
|
USSR(Irkutskaya Oblast) |
Rudavskaya,V.A. Micropaleaephytological characteristics of Lower Palaeozoic deposits of the Markov oil Field |
1966 |
| details |
Nd |
|
Nd |
Timofeev,B.V. Pre-Cambrian microplankton from the Ukraine. |
1973 |
| details |
Middle Precambrian |
|
USSR(Siberia) |
Timofeev,B.V. et al. Microfossils of the Precambrian, Cambrian and Ordovician. |
1976 |
| details |
Nd |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |