| details |
Artinskian |
|
India(Orissa) |
Roy,R. et al. Palaeonotology of the Gondwana rocks with a note on the correlation of Coal Seams of Talchir Coal Field, Orissa. |
1967 |
| details |
Artinskian |
|
USSR(Komi ASSR) |
Faddeeva,I.Z. Miospore complexes in Permian Coal Formation of the Pechorsk Basin. (In: Spores and pollen of Phanerozoic deposits. L.A. Panova et al, editors) |
1984 |
| details |
Artinskian |
|
India(Bihar) |
Guhasarkar,T.K. Note on the Micro-Flora contents of the Karharbari and Barakar Coals of the Giridih Coalfield. |
1956 |