| original |
Middle Permian |
Late Permian |
India(Bihar) |
Tiwari,R.S. Miospore assemblage in some Coals of Barakar Stage (Lower Gondwana), of India. |
1965 |
| details |
Late Artinskian |
|
India |
Tiwari,R.S. Palaeozoic cryptogamic spores. (In: Aspects and Appraisal of Indian Palaeobotany. K.R.Surange, editor) |
1974 |
| details |
Permian |
|
India(Madhya Pradesh) |
Lakhanpal,R.N. et al. A catalogue of Indian fossil plants |
1976 |
| details |
Late Artinskian |
|
India(Bihar) |
Bharadwaj,D.C. et al. Sporae dispersae of the Barakar sediments from South Karanpura Coalfield, Bihar, India. |
1981 |
| details |
Early Triassic |
|
India(West Bengal) |
Tiwari,R.S. et al. Palynological sequence and relationship of subsurface Permian-Triassic sediments in eastern Raniganj Coalfield, West Bengal, India. |
1992 |