| details |
Vendian |
Early Cambrian |
USSR(Kazakh SSR) |
Blyakhova,S.M. et al. First findings of acritarchs in deep-metamorphic ancient deposits of Kendyktasa, (Southern Kazakhstan). |
1976 |
| details |
Precambriam |
|
USSR |
Yankauskas,T.V. et al. Status of the study. (In: Precambrian Microfossils of the USSR. T.V.Yankauskas, editor) |
1989 |
| details |
Nd |
|
Nd |
Rudavskaya,V.A. Systematic principles of sphaeromorphs. (In:Mikrofitofossilii Proterozoya i Rannego Paleozoya SSSR. B.V.Timofeev, editor) |
1974 |
| details |
Nd |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| original |
Late Proterozoic |
|
USSR(Tatar ASSR) |
Shepeleva,E.D. Spore (?) Complexes in deposits of the Bavlinskoy Series of the Volga-Ural area). (In: Spore-pollen Complexes and Stratigraphy of the Upper Proterozoic, Paleozoic and Mesozoic of the Volga-Uragarea and Central Asia. A.B.Filimonova and A.D.Archangelskaya, editors) |
1963 |
| details |
Carboniferous |
|
USSR(Ukrainian SSR) |
Shkrebta,G.P. et al. New evidence for the exsistance of Late Proterozoic and Lower Paleozoic formations in the Dnieper Donets Depression (DDD). |
1972 |