| original |
Late Vendian |
|
USSR |
Naumova,S.N. Zonal assemblages of Precambrian and Lower Cambrian plant microfossils of Eurasia and their stratigraphic importance. |
1968 |
| details |
Precambriam |
|
Scotland |
Downie,C. Acritarchs from near the Precambrian-Cambrian boundary--A preliminary account. |
1974 |
| details |
Late Precambrian |
Early Cambrian |
USSR |
Naumova,S.N. Plant microfossils of Precambrian and Lower Cambrian of Eurasia and their significance for stratigraphy. |
1974 |
| details |
Precambriam |
|
Scotland |
Downie,C. Intercontinental correlation of the Lower Cambrian based on acritarchs. |
1974 |
| details |
Late Vendian |
Early Cambrian |
Ireland |
Smith,D.G. Progress in Irish Lower Palaeozoic palynology. |
1981 |
| details |
Early Cambrian |
|
Scotland |
Kedves,M. Introduction to the palynology of Pre-Quaternary deposits |
1986 |
| details |
Late Vendian |
|
USSR |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |