| details |
Middle Devonian |
|
W.Germany(Rhineland) |
Eisenack,A. Problems of the spreading and distribution of the genus Leiosphaera (Hystrichosphaeridea). |
1956 |
| details |
Silurian |
|
USSR(Estonian SSR) |
Eisenack,A. On Hystrichospheres and other microffossils of the Baltic Silurian and Cambrian |
1951 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Late Devonian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Nd |
|
Nd |
Eisenack,A. On some species of the genus Tasmanites Newton 1875. |
1963 |
| details |
Devonian |
|
Nd |
Kr¤usel,R. Dawson's "sporocarps", a new class of Devonian Thallophytes. |
1941 |