| original |
Silurian |
|
Brazil(Maranhao) |
Brito,I.M. et al. Contribution to the knowledge of Silurian and Devonian microfossils of the Maranhao Basin. |
1965 |
| details |
Late Ordovician |
Early Gothlandian |
Brazil(Maranhao) |
Brito,I.M. Silurian and Devonian acritarcha from Maranhao Basin, Brazil |
1967 |
| details |
Silurian |
|
Brazil |
Swain,F.M. Notes on Paleozoic acritarchs from the Atlantic Margins. (In: Stratigraphic Micropaleontology of Atlantic Basin and Borderlands. F.M.Swain, editor) |
1977 |
| details |
Silurian |
|
Brazil(Maranhao) |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystricosphaeres and related microfossils. |
1979 |
| details |
Silurian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Llandoverian |
Early Wenlockian |
Brazil(Paraiba) |
Rubinstein,C.V. Silurian acritarchs from South America: A review. |
1996 |