| details |
Artinskian |
Kungurian |
Brazil(Rio Grande Sul) |
Fabricio,M.E.D. Palynology of the Rio Bonito Formation in the Gravatai-Morungava area, Rio Grande do Sul. |
1981 |
| details |
Early Permian |
|
Brazil(Rio Grande Sul) |
Correa da Silva,Z.C. et al. Geology of Santa Rita Coal Basin, Rio Grande do Sul, Brazil. |
1984 |
| details |
Asselian |
Kazanian |
|
de Quadros,L.P. et al. Catalog of fossil pollen and spores of the Paleozoic |
1995 |
| details |
Asselian |
Kazanian |
Brazil(Santa Catarina) |
de Quadros,L.P. et al. Catalog of fossil pollen and spores of the Paleozoic |
1995 |
| details |
Artinskian |
Kungurian |
|
Kalkreuth,W.D. et al. A comparative study of the geology, petrology and palynology of Permian coals in Tanzania and southern Brazil. |
1999 |