| details |
Late Permian |
Early Triassic |
Antarctica |
Retallack,G.J. et al. Search for evidence of impact at the Permian - Triassic Boundary in Antarctica and Australia. |
1998 |
| details |
Late Permian |
Early Triassic |
Australia |
Retallack,G.J. et al. Search for evidence of impact at the Permian - Triassic Boundary in Antarctica and Australia. |
1998 |
| details |
Early Triassic |
|
India(Madhya Pradesh) |
Tiwari,R.S. et al. Palyno-dating of Nidpur Beds, Son Grab, Madhya Pradesh. (In: Proceeding of the Symposium on the Vistas in Indian Palaeobotany. K.P.Jain and R.S.Tiwari, editors) |
1990 |