| details |
Early Tatarian |
|
India(West Bengal) |
Tiwari,R.S. et al. Palyno-dating of Permian and Triassic sediments in two bore-holes from the eastern Limits of Raniganj Coalfield, West Bengal. |
1979 |
| details |
Middle Triassic |
|
India(West Bengal) |
Tiwari,R.S. et al. A Middle Triassic mioflora from India. |
1980 |
| details |
Late Permian |
Early Triassic |
India(West Bengal) |
Rana,V. et al. Palynological succession in Permian-Triassic sediments in Bore-Hole Rnm-3, East Raniganj Coalfield, West Bengal. |
1980 |
| details |
Tatarian |
|
India(Andhra Pradesh) |
Srivastava,S.C. et al. Palynology of Kamthi Formation from Chelpur area, Godavari Graben, Andhra Pradesh, India |
1987 |
| details |
Nd |
|
Nd |
Boersma,M. et al. Triassic palynomorphs, index to genera and species |
1987 |
| details |
Permian |
|
India |
Raghubanshi,A.S. et al. Environmental change and biological diversity: present, past and future. |
1991 |