| original |
Frasnian |
|
Belgium |
Stockmans,F. et al. Hystrichospheres of the Belgian Devonian (Wepion Drilling). |
1962 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Late Devonian |
|
USSR(Mountain Altai) |
Sheshegova,L.I. Acritarchs from the Upper Devonian deposits near the village of Solovicha (Gorniy Altai). (In: Paleontological Researches of Siberia. T.F.Vozhennikova, editor) |
1978 |
| details |
Frasnian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |