| details |
Kazanian |
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 |
Westphalian A |
Westphalian D |
Poland |
Bharadwaj,D.C. et al. Sporae dispersae of the Barakar sediments from South Karanpura Coalfield, Bihar, India. |
1981 |
| details |
Sakmarian |
Artinskian |
India(Bihar) |
Banerjee,M. et al. Palynostratigraphy and environment of deposition in the Lower Gondwana sediments of Chuparbhita Coalfield, Rajmahal Hills. |
1988 |
| details |
Late Permian |
|
India(Madhya Pradesh) |
Tiwari,R.S. et al. Sporae-dispersae and correlation of Gondwana sediments in Johilla Coalfield, Son Valley Graben, Madhya Pradesh. |
1989 |
| details |
Permian |
|
India |
Raghubanshi,A.S. et al. Environmental change and biological diversity: present, past and future. |
1991 |
| details |
Late Permian |
|
India(Bihar) |
Tiwari,R.S. et al. Marker assemblage-zones of spores and pollen species through Gondwana Palaeozoic and Mesozoic sequence in India. |
1992 |
| details |
Late Permian |
|
India(West Bengal) |
Tiwari,R.S. et al. Marker assemblage-zones of spores and pollen species through Gondwana Palaeozoic and Mesozoic sequence in India. |
1992 |
| details |
Late Permian |
|
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 |
| details |
Early Permian |
|
India(Madhya Pradesh) |
d'Rozario,A. et al. Palynostratigraphic zones in the identification of Early Permia age of Turra, Purewa and Jhingurdah Coal Seams of Singrauli Coalfield, India |
1996 |