| original |
Late Artinskian |
|
India(Bihar) |
Bharadwaj,D.C. et al. Lower Gondwana megaspores-A monograph |
1970 |
| details |
Early Permian |
|
India(Madhya Pradesh) |
Lele,K.M. et al. Studies in the Talchir flora of India. 9. Megaspores from the Talchir Formation in the Johilla Coalfield, (Madhya Pradesh), India. |
1974 |
| 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 |