| details |
Nd |
|
France |
Alpern,B. et al. Palaeobotany and palynology in France: a historical review. |
1968 |
| details |
Nd |
|
Nd |
Brito,I.M. The acritarchs |
1967 |
| details |
Ordovician |
Silurian |
Nd |
Rudavskaya,V.A. Hystrichosphaerida of the Paleozoic Era |
1965 |
| details |
Ordovician |
|
Nd |
Eisenack,A. Hystricosphaeres |
1963 |
| details |
Ordovician |
Silurian |
Baltic |
Timofeev,B.V. Phytoplankton and dispersed spores of the Ordovician, Silurian and Lower Devonian of the Baltic Region, the Gory Switokrzyskie and Podolia. |
1963 |
| details |
Ordovician |
Silurian |
Poland |
Timofeev,B.V. Phytoplankton and dispersed spores of the Ordovician, Silurian and Lower Devonian of the Baltic Region, the Gory Switokrzyskie and Podolia. |
1963 |
| details |
Nd |
|
Nd |
Evitt,W.R. A discussion and proposals concerning fossil dinoflagellates, Hystrichospheres, and acritarchs. II. |
1963 |
| details |
Ordovician |
|
Nd |
Evitt,W.R. Observations on the morphology of fossil dinoflagellates. |
1961 |
| details |
Nd |
|
Nd |
Sarjeant,W.A.S. The Hystrichospheres. A review and discussion. |
1961 |
| original |
Llandeilian |
|
France(Finistere) |
Deunff,J. Aremoricanium, new genus of Hystrichosphere from the Silurian of Brittany. |
1955 |