| details |
Tatarian |
|
India |
Tiwari,R.S. Palaeozoic cryptogamic spores. (In: Aspects and Appraisal of Indian Palaeobotany. K.R.Surange, editor) |
1974 |
| details |
Middle Aktastinian |
|
South Africa |
Anderson,J.M. The biostratigraphy of the Permian and Triassic. Part 3. A review of Gondwana Permian palynology with particular reference to the northern Karoo Basin, South Africa. |
1977 |
| details |
Late Permian |
|
India(West Bengal) |
Lakhanpal,R.N. et al. A catalogue of Indian fossil plants |
1976 |
| original |
Late Permian |
|
India(West Bengal) |
Salujha,S.K. Miospores assemblage of Seam IX of East Raniganj, (India). |
1965 |
| details |
Late Permian |
|
India(West Bengal) |
Surange,K.R. et al. Some male fructifications of Glossopteridales. |
1974 |