| details |
Early Permian |
|
USSR(Pre-Urals) |
Hart,G.F. The systematics and distribution of Permian miospores. |
1965 |
| details |
Early Permian |
|
Brazil(Rio Grande Sul) |
Ybert,J.P. A miospore study in the Candiota-Hulha Negra Coal Basin, Rio Grande do Sul, Brazil. |
1975 |
| 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 |
|
|
Guerra-Sommer,M. et al. Original Biomass and coal deposition in southern Brazil, (Lower Permian, Parana Basin). |
1991 |
| details |
Gzelian |
Asselian |
Kazakstan |
Dunn,M.T. Palynology of the Carboniferous-Permian boundary stratotype, Aidaralash Creek, Kazakhstan. |
2001 |