| original |
Early Permian |
|
Brazil(Santa Catarina) |
Tiwari,R.S. et al. Pollen and spore assemblage in some Coals of Brazil. |
1967 |
| original |
Early Permian |
|
Brazil(Rio Grande Sul) |
Tiwari,R.S. et al. Pollen and spore assemblage in some Coals of Brazil. |
1967 |
| details |
Permian |
|
Brazil |
Potonie,R. Synopsis of the genera of the sporae dispersae.Part 7 |
1975 |
| details |
Nd |
|
Nd |
Burjack,M.I.A. Palynological study of the Charqueadas Coalfield, Rio Grande do Sul, Brazil. |
1978 |
| details |
Kazanian |
|
Brazil(Sao Paulo) |
Men©ndez,C.A. Palynology of Permian and Triassic strata from South America. |
1979 |