| details |
Riphean |
Vendian |
Romania |
Olaru,L. et al. On the presence of some associations of the acritarchs in the Upper Proterozoic and Lower Paleozoic, Eastern Carpathians, Romania |
1985 |
| details |
Precambriam |
|
USSR |
Yankauskas,T.V. et al. Acritarch (Group acritarch,1963) classification. (In: Precambrian Microfossils of the USSR. T.V.Yankauskas, editor) |
1989 |
| details |
Nd |
|
Nd |
German,T.N. et al. Systematic descriptions of microfossils. (In: Precambrian Microfossils of the USSR. T.V.Yankauskas, editor) |
1989 |
| details |
Early Cambrian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |