| original |
Early Permian |
Middle Permian |
India(Bihar) |
Venkatachala,B.S. et al. Palynology of the Karanpura sedimentary Basin, Bihar, India. 1 Barakar Stage at Badam. |
1968 |
| details |
Early Gondwana |
|
India |
Singh,G. et al. Lower Gondwana palynology and related stratigraphic problems. |
1972 |
| details |
Early Permian |
|
India(Bihar) |
Kar,R.K. Palynological delimitation of the Lower Gondwanas in the North Karanpura Sedimentary Basin, India. |
1973 |
| details |
Permian |
|
India(Bihar) |
Potonie,R. Synopsis of the genera of the sporae dispersae.Part 7 |
1975 |