| details |
Early Permian |
|
India |
Bharadwaj,D.C. Lower Gondwana formations. |
1969 |
| details |
Westphalian C |
Westphalian D |
W.Germany(Saarland) |
Vliex,M. et al. Aromatized arborane/fernane hydrocarbons as molecular indicators of floral changes in Upper Carboniferous/Lower Permian strata of the Saar-Nahe Basin, southwestern Germany. |
1994 |
| details |
Westphalian C |
Westphalian D |
France(Alsace) |
Vliex,M. et al. Aromatized arborane/fernane hydrocarbons as molecular indicators of floral changes in Upper Carboniferous/Lower Permian strata of the Saar-Nahe Basin, southwestern Germany. |
1994 |