| details |
Sakmarian |
|
India |
Srivastava,S.C. Permian microfloras. (In: Aspects and Appraisal of Indian Palaeobotany. K.R.Surange, editor) |
1974 |
| details |
Nd |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| 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 |
Cambrian |
Silurian |
India(Jammu & Kashmir) |
Lele,K.M. et al. Precambrian and Palaeozoic floras from the Himalaya; a review |
1983 |