| original |
Late Permian |
|
India(Bihar) |
Bharadwaj,D.C. et al. Sporological study of Seam 8 in Raniganj Coalfield, Bihar. (India).Part 1. Description of sporae dispersae. |
1964 |
| details |
Late Permian |
|
India(West Bengal) |
Salujha,S.K. Miospores assemblage of Seam IX of East Raniganj, (India). |
1965 |
| details |
Late Permian |
|
India(West Bengal) |
Lakhanpal,R.N. et al. A catalogue of Indian fossil plants |
1976 |
| details |
Permian |
|
India |
Raghubanshi,A.S. et al. Environmental change and biological diversity: present, past and future. |
1991 |