| details |
Silurian |
|
Brazil(Para) |
Grahn,Y. et al. Age and correlation of the Trombetas Group, Amazonas Basin, Brazil. |
1992 |
| details |
Late Llandoverian |
Early Ludlovian |
Brazil(Amazonas) |
Grahn,Y. et al. Age and correlation of the Trombetas Group, Amazonas Basin, Brazil. |
1992 |
| details |
Late Llandoverian |
Early Wenlockian |
Brazil(Paraiba) |
Grahn,Y. Revision of Silurian and Devonian strata in Brazil |
1992 |
| details |
Silurian |
|
Brazil(Para) |
Grahn,Y. et al. Age and correlation of the Trombetas Group, Amazonas Basin, Brazil. |
1992 |
| details |
Late Aeronian |
Telychian |
Brazil |
Paris,F. Chitinozoan biostratigraphy and palaeoecology. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Late Llandoverian |
Early Wenlockian |
Brazil(Paraiba) |
Rubinstein,C.V. Silurian acritarchs from South America: A review. |
1996 |