| original |
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 |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Volgian |
|
USSR(Siberia) |
Zatonskaya,S.G. Algae of the Upper Jurassic and the lowest Parts of the Lower Cretaceous in the Shaim oil-bearing Region |
1983 |
| details |
Late Volgian |
Early Berriasian |
USSR(Siberia) |
Rovnina,L.V. et al. Microphytofossils of boundary deposits of Jurassic and Cretacous in Western Siberia. (In: Jurassic - Cretaceous Boundary. V.V.Menner, editor) |
1990 |
| details |
Late Jurassic |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |