| details |
Artinskian |
Kungurian |
Tanzania |
Semkiwa,P. et al. The geology, petrology, palynology and geochemistry of Permian Coal Basin in Tanzania. 1. Namwele-Mkomolo, Muze and Galula Coalfields |
1998 |
| details |
Gzelian |
Asselian |
Kazakstan |
Dunn,M.T. Palynology of the Carboniferous-Permian boundary stratotype, Aidaralash Creek, Kazakhstan. |
2001 |
| details |
Sakmarian |
Kungurian |
Brazil(Amazonas) |
Matsuda,N.S. et al. Lithostratigraphic review of the Tapajгs Group, Middle Carboniferous - Permian of the Amazonas Basin. |
2004 |
| 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, ParanЎ Basin, Brazil. |
2005 |