| details |
Late Sakmarian |
Artinskian |
USSR(Urals) |
Dyupina,G.V. Acritarchs of terrigenous deposits in the Lower Permian of the northern Urals. (In: Upper Paleozoic Terrigenous Deposits of the Urals.) |
1970 |
| details |
Artinskian |
|
USSR(Urals) |
Dyupina,G.V. New species of acritarchs in Permian deposits of the Urals. (In: New Miospores, Foraminifera, Ostracods and conodonts of the Paleozoic and Mesozoic of the Urals. Collected Articles on the Problems of Stratigraphy.#24. N.P.Malachova and B.I.Chuvashev, editors) |
1975 |
| details |
Late Sakmarian |
Artinskian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |