| details |
Early Vendian |
|
USSR(Kirghiz SSR) |
Nikitina,T.M. et al. Acritarchs from "Lower Dolomites" of the Maly Karatau. (In: Dispersed Remains of Plant Fossils of Kirghizia.V.G.Korolev, editor) |
1971 |
| details |
Early Cambrian |
|
USSR(Uzbek SSR) |
Bezuglov,E.D. et al. New stratigraphic data concerning the Crystalline series of the Southwestern Hissar range |
1972 |
| details |
Early Ordovician |
|
USSR(Yakut ASSR) |
Lopukhin,A.S. Acritarchs of the Proterozoic and Early Paleozoic of Tyan-Shan. (In: Palynology of Proterophyte and Palaeophyte.S.N.Naumova, editor) |
1974 |
| details |
Nd |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |