| 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 |
Tournaisian |
|
Belgium |
Stockmans,F. et al. Dinantian acritarchs from a Drilling at the Asylum for the Demented, at Tournai, (Belgium). |
1966 |
| details |
Famennian |
|
China(Tibet) |
Lu,L.-C. et al. Upper Devonian acritarchs and spores from the Hongguleleng Formation, Hefeng District in Xinjiang, China. |
1988 |
| details |
Frasnian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |