| details |
Vendian |
|
Sweden |
Downie,C. et al. On the interpretation and status of some Hystrichosphere genera. |
1963 |
| details |
Vendian |
|
Sweden |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Nd |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Riphean |
|
Spitsbergen |
Butterfield,N.J. et al. Paleobiology of the Neoproterozoic Svabergfjellet Formation, Spitsbergen |
1994 |
| details |
Nd |
|
Nd |
Samuelsson,J. Biostratigraphy and palaeobiology of Early Neoproterozoic strata of the Kola Peninsula, Northwest Russia |
1997 |