| original |
Early Cambrian |
|
USSR(Kirghiz SSR) |
Lopukhin,A.S. Plant microfossils in the oldest deposits of North northern Tien-Shan. (In: The Importance of Palynological Analysis for the Stratigraphic and Paleofloristic Investigations. M.I. Nejshtadt, editor. Papers for the Second International Palynology Conference., Utrecht,1966) |
1966 |
| 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 Cambrian |
|
Romania |
Olaru,L. et al. The age of epimetamorphic formations of the Rusai Zone, (from the Bistrite Mountains) based on spore-protistologic analysis. |
1979 |
| details |
Early Cambrian |
|
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 |
Nd |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |