| original |
Early Artinskian |
|
India(Bihar) |
Bharadwaj,D.C. et al. Lower Gondwana megaspores-A monograph |
1970 |
| details |
Permian |
|
India(Madhya Pradesh) |
Lakhanpal,R.N. et al. A catalogue of Indian fossil plants |
1976 |
| details |
Carboniferous |
|
India |
Pi©rart,P. Stratigraphical and geographical distribution of Gondwana megaspores. |
1980 |
| details |
Early Permian |
|
India |
Maheshwari,H.K. et al. Megaspore biostratigraphy of the Gondwana. (In: Concepts, limits and extension of the Indian Gondwana. B.S.Venkatachala and H.K.Maheshwari, editors) |
1988 |