| original |
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 |
Late Carboniferous |
Permian |
India(Himachal Pradesh) |
Srivastava,R.N. et al. Palynostratigraphy of Mandi Salt Beds of Himachal Pradesh. |
1979 |
| details |
Early Carboniferous |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |