| original |
Middle Devonian |
|
Canada |
Deunff,J. A fossil Devonian microplankton of Hystrichospheres from the North American Continent. |
1955 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Devonian |
|
Canada |
Deunff,J. Research on the Devonian microplankton (Acritarchs and Dinophyceae). |
1965 |
| original |
Early Devonian |
Middle Devonian |
Canada(Ontario) |
Deunff,J. The acritarchs. 1.The genus Polyedryxium |
1971 |
| details |
Middle Devonian |
Late Devonian |
Tunisia |
Deunff,J. The acritarchs. 1.The genus Polyedryxium |
1971 |
| original |
Couvinian |
|
Canada(Ontario) |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1976 |
| details |
Devonian |
|
North America |
Nautiyal,A.C. The paleogeographic distribution of Devonian acritarchs and biofacies belts. |
1977 |
| details |
Devonian |
|
Africa |
Nautiyal,A.C. The paleogeographic distribution of Devonian acritarchs and biofacies belts. |
1977 |
| details |
Couvinian |
|
Nd |
Diez,M.D.C.R. et al. Range chart of selected Lower Paleozoic acritarch Taxa. 2: Index to Parts 1 and 2. |
1977 |
| details |
Eifelian |
Givetian |
Canada(Ontario) |
Wicander,R. A catalogue and biostratigraphic distribution of North American Devonian acritarchs. |
1983 |
| details |
Middle Devonian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |