| details |
Early 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 |
Early 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 |
Nd |
|
Nd |
Warrington,G. Paleozoic spores and pollen: Permian spores and pollen. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |