| original |
Early Gondwana |
|
India(Bihar) |
Surange,K.R. et al. Megaspores from the West Bokaro Coalfield. |
1953 |
| details |
Nd |
|
Nd |
Hoeg,O.A. et al. On double walls in fossil megaspores |
1955 |
| details |
Early Gondwana |
|
India(Bihar) |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |
| details |
Early Artinskian |
Tatarian |
India(Bihar) |
Bharadwaj,D.C. et al. Lower Gondwana megaspores-A monograph |
1970 |
| details |
Permian |
|
India(Bihar) |
Lakhanpal,R.N. et al. A catalogue of Indian fossil plants |
1976 |
| details |
Late Permian |
|
India(Madhya Pradesh) |
Tewari,R. et al. Megaspores from Early Permian of India. |
1992 |