| details |
Late Precambrian |
Late Cambrian |
Worldwide |
Timofeev,B.V. The taxonomy of the most ancient phytoplankton organisms and dispersed spores. (Taxonomy and Methods for the Study of Fossl Pollen and Spores. V.N. Saks and A.F. Khlonova, editors) |
1964 |
| details |
Nd |
|
Nd |
Timofeev,B.V. Systematic classification of organic phytoplankton and spore dispersa. (In: Taxonomy and methods for the study of fossil pollen and spores. V.N.Saks and A.F.Khlonova, editors) |
1964 |
| details |
Precambriam |
Early Cambrian |
Poland |
Jagielska,L. Microfloristic study of a Radzyh Podlaski Boring |
1965 |
| details |
Middle Cambrian |
Early Ordovician |
USSR(Pamirs) |
Sivertseva,I.A. et al. Lower Paleozoic microfossil finds in South-Eastern Pamir. (In: Microfossils USSR. T.F.Vozzhennikova et al, editors) |
1974 |
| details |
Early Ordovician |
|
USSR(Pre-Baltic) |
Timofeev,B.V. et al. Microfossils of the Precambrian, Cambrian and Ordovician. |
1976 |