| 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 |
| original |
Early Permian |
|
Uruguay |
Marques-Toigo,M. Some new species of spores and pollens of Lower Permian age from the San Gregorio Formation in Uruguay. |
1974 |
| details |
Cisuralian |
Middle Guadalupian |
Brazil(Rio Grande Sul) |
Souza,P.A. et al. Progress on the palynostratigraphy of the Permian strata in Rio Grande do Sul State, ParanŠ Basin, Brazil. |
2005 |
| 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 |