| details |
Early Carboniferous |
|
Saudi Arabia |
Hemer,D.O. et al. Algae, acritarchs and other microfossils Incertae Sedis from the Lower Carboniferous of Saudi Arabia |
1967 |
| details |
Early Paleozoic |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |
| details |
Mississippian |
|
Saudi Arabia |
Tappan,H. The Paleobiology of Plant Protists. |
1980 |
| details |
Early Carboniferous |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Carboniferous |
|
Saudi Arabia |
Grenfell,H.R. Probable fossil Zygnematacean algal spores Genera |
1995 |