| details |
Nd |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Ordovician |
|
Nd |
Evitt,W.R. Observations on the morphology of fossil dinoflagellates. |
1961 |
| details |
Nd |
|
Nd |
Evitt,W.R. A discussion and proposals concerning fossil dinoflagellates, Hystrichospheres, and acritarchs. II. |
1963 |
| details |
Ordovician |
|
Nd |
Eisenack,A. Hystricosphaeres |
1963 |
| details |
Nd |
|
Nd |
Eisenack,A. Contribution to acritarch research. |
1974 |
| details |
Ordovician |
|
Nd |
Downie,C. Observations on the nature of the acritarchs |
1973 |
| original |
Llandeilian |
|
France(Finistere) |
Deunff,J. Aremoricanium, new genus of Hystrichosphere from the Silurian of Brittany. |
1955 |
| details |
Middle Frasnian |
|
Canada(Quebec) |
Cloutier,R. et al. Biostratigraphy of the Upper Devonian Escuminac Formation eastern Quebec, Canada: A comparative study based on miospores and Fishes |
1996 |
| details |
Nd |
|
Nd |
Brito,I.M. The acritarchs |
1967 |
| details |
Nd |
|
France |
Alpern,B. et al. Palaeobotany and palynology in France: a historical review. |
1968 |