| details |
Silurian |
Late Llandoverian |
Baltic |
Eisenack,A. Hystrichospheres of the Baltic Gotlandium |
1954 |
| original |
Late Llandoverian |
|
Baltic |
Eisenack,A. Hystrichospheres of the Baltic Gotlandium |
1954 |
| details |
Late Ludlovian |
|
E.Germany(Rostock) |
Eisenack,A. Chitinozoans, Hystrichospheres and other microfossils from the Beyrichia-Limestone. |
1955 |
| details |
Early Llandoverian |
|
USSR(Estonian SSR) |
Eisenack,A. New types of Baltic Silurian Hystrichospheres and new species. |
1959 |
| details |
Wenlockian |
|
Sweden |
Eisenack,A. New types of Baltic Silurian Hystrichospheres and new species. |
1959 |
| details |
Gothlandian |
|
Baltic |
Eisenack,A. Hystricosphaeres |
1963 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Silurian |
|
Baltic |
Norris,G. et al. A descriptive index of genera of fossil Dinophyceae and acritarcha. |
1965 |
| details |
Llandoverian |
Wenlockian |
Sweden |
Eisenack,A. Microfossils of the Gotland Silurian. Hystrichospheres and questionable types |
1965 |
| details |
Tarannon |
|
Belgium |
Martin,F. Acritarchs from the Park at Neuville-Sous-Huy (Belgian Silurian) |
1966 |
| details |
Early Ordovician |
|
Sweden |
Eisenack,A. On the reproduction of Palaeozoic hystrichospheres. |
1968 |
| details |
Late Tarannon |
|
Belgium |
Martin,F. The acritarchs from the Belgian Ordovician and Silurian. Determination and stratigraphic value. |
1968 |
| details |
Llandoverian |
|
Sweden |
Eisenack,A. Microfossils of a secondary deposit from the Borkholm Stage, Baltic Ordovician, F2. |
1968 |
| details |
Silurian |
|
Nd |
Evitt,W.R. Dinoflagellates and other organisms in palynological preparations. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |
| details |
Silurian |
|
Sweden |
Rudavskaya,V.A. Palaeozoic Hystrichospheres. |
1969 |
| details |
Wenlockian |
|
England |
Cramer,F.H. Distribution of selected Silurian acritarchs an account of the palynostratigraphy and paleogeography of selected Silurian acritarch Taxa |
1970 |
| details |
Tarannon |
|
Belgium |
Cramer,F.H. Distribution of selected Silurian acritarchs an account of the palynostratigraphy and paleogeography of selected Silurian acritarch Taxa |
1970 |