| original |
Early Carboniferous |
|
Brazil(Maranhao) |
Trindade,N.M. Carboniferous megaspores from the Tocantins-Araguaia Basin. |
1967 |
| original |
Visean |
|
Brazil(Maranhao) |
Trindade,N.M. Interfingering of boreal and Austral flora in Brazil, suggested by constellations of megaspores. |
1971 |
| details |
Early Carboniferous |
|
Brazil |
Wilder,N.T. Late Paleozoic Lycopodiaceous megaspores of Brazil. |
1980 |
| details |
Tournaisian |
Visean |
Brazil |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |