| original |
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 |
Asselian |
Artinskian |
|
de Quadros,L.P. et al. Catalog of fossil pollen and spores of the Paleozoic |
1995 |
| details |
Asselian |
Artinskian |
Brazil(Santa Catarina) |
de Quadros,L.P. et al. Catalog of fossil pollen and spores of the Paleozoic |
1995 |
| details |
Sakmarian |
Early Artinskian |
Uruguay |
Beri,A. et al. Palynological and stratigraphic analysis of the San Gregorio Formation (Early Permian) located in the region of the Guazunambi Hills, Cerro largo Uruguay |
1996 |