| original |
Early Permian |
|
India(Orissa) |
Tiwari,R.S. Palynological investigations of some coal seams in the Ib River Coalfield (Orissa), India. |
1968 |
| details |
Late Artinskian |
|
India |
Tiwari,R.S. Palaeozoic disaccate pollen. (In: Aspects and Appraisal of Indian Palaeobotany. K.R.Surange, editor) |
1974 |
| details |
Permian |
|
India(Orissa) |
Lakhanpal,R.N. et al. A catalogue of Indian fossil plants |
1976 |
| details |
Sakmarian |
|
India(Bihar) |
Shukla,M. Lithostratigraphy and palynostratigraphy of the Lower Gondwana Formation in the Hutar Coalfield, Palamau District, Bihar, India. |
1984 |