| original |
Middle Devonian |
|
Brazil(Pernambuco) |
Brito,I.M. Contribution to the knowledge of Devonian microfossils of Pernambuco.2.Acritarcha Ptermomorphitae. |
1967 |
| details |
Eifelian |
Givetian |
Paraguay |
Pжthe de Baldis,E.D. Microplankton of the Middle Devonian of Paraguay. |
1974 |
| details |
Frasnian |
|
Brazil(Pernambuco) |
Brito,I.M. Contribution to the knowledge of Devonian microfossils of Pernambuco Iii-Some acritarcha in Common with the Sahara Devnian. |
1976 |
| details |
Middle Devonian |
|
Paraguay |
Volkheimer,W. et al. Stratigraphic significance of Paleozoic and Mesozoic microflora from Argentina and neighboring countries. |
1976 |
| details |
Emsian |
|
Uruguay |
Pжthe de Baldis,E.D. Additional Paleomicroplankton from the Lower Devonian of Uruguay. |
1977 |
| details |
Middle Devonian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Early Ludfordian |
|
Saudi Arabia |
Le H©riss©,A. et al. Stratigraphic and paleogeographical significance of Silurian acritarchs from Saudi Arabia. (In: Palaeozoic Palynostratigraphy of the Kingdom of Saudi Arabia. B.Owens et al, editors) |
1995 |