| details |
Late Tithonian |
|
USSR(WSL) |
Malyavkina,V.S. et al. Pollen and spores from Central Siberia and the European Platform. Incertae Sedis. (In: Pyltsa i spory zapadnoi Sibiri, yura-paleotsen. S.R.Samoilovich and N.D.Mtchedlishvili, editors) |
1961 |
| details |
Mesozoic |
|
USSR(Siberia) |
Potonie,R. Synopsis of the genera of the sporae dispersae.Part 7 |
1975 |
| details |
Early Eocene |
|
USSR |
Vozzhennikova,T.F. et al. Cenozoic planktonic Paleoalgofloras of the Southern USSR. (In: Palynology in the USSR. A.F.Chlonova, editor) |
1988 |
| details |
Nd |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |