| details |
Ordovician |
|
USSR(Estonian SSR) |
Eisenack,A. Microfossils of the Ordovician from the Baltic area.1. |
1958 |
| details |
Ordovician |
|
USSR(Estonian SSR) |
Eisenack,A. Microfossils of the Ordovician from the Baltic area.1. |
1958 |
| details |
Ordovician |
|
USSR(Estonian SSR) |
Eisenack,A. Microfossils of the Ordovician from the Baltic area.1. |
1958 |
| details |
Middle Ordovician |
Early Llandoverian |
USSR(Estonian SSR) |
Eisenack,A. New types of Baltic Silurian Hystrichospheres and new species. |
1959 |
| original |
Middle Ordovician |
Early Llandoverian |
USSR(Estonian SSR) |
Eisenack,A. New types of Baltic Silurian Hystrichospheres and new species. |
1959 |
| original |
Middle Ordovician |
|
USSR(Estonian SSR) |
Eisenack,A. New types of Baltic Silurian Hystrichospheres and new species. |
1959 |
| original |
Early Ordovician |
|
USSR(Estonian SSR) |
Eisenack,A. New types of Baltic Silurian Hystrichospheres and new species. |
1959 |
| original |
Middle Ordovician |
Late Ordovician |
Sweden |
Eisenack,A. New types of Baltic Silurian Hystrichospheres and new species. |
1959 |
| original |
Early Ordovician |
|
Sweden |
Eisenack,A. New types of Baltic Silurian Hystrichospheres and new species. |
1959 |
| details |
Frasnian |
|
Belgium |
Stockmans,F. et al. Hystrichospheres of the Belgian Devonian (Drilling at the Asylum for the Demented at Tournai). |
1960 |
| details |
Ordovician |
|
Baltic |
Eisenack,A. Microfossils from the Baltic Ordovician. 2: Vaginatenkalk to Lyckholmer Stufe. |
1962 |
| details |
Ordovician |
|
Baltic |
Eisenack,A. Microfossils from the Baltic Ordovician. 2: Vaginatenkalk to Lyckholmer Stufe. |
1962 |
| details |
Ordovician |
|
Baltic |
Eisenack,A. Microfossils from the Baltic Ordovician. 2: Vaginatenkalk to Lyckholmer Stufe. |
1962 |
| details |
Ordovician |
|
Baltic |
Eisenack,A. Microfossils from the Baltic Ordovician. 2: Vaginatenkalk to Lyckholmer Stufe. |
1962 |
| details |
Nd |
|
Nd |
Eisenack,A. Some recent observations on Hystrichosphaeridium |
1962 |
| details |
Tournaisian |
|
Belgium |
Stockmans,F. et al. Hystrichospheres of the Belgium Devonian (Drilling at the Asylum for the demented at Tournai). |
1962 |
| details |
Late Ordovician |
|
Baltic |
Eisenack,A. A report on Leiospheres and on the Pylom of Hystrichospheres |
1962 |