| details |
Early Ordovician |
|
Sweden |
Eisenack,A. New types of Baltic Silurian Hystrichospheres and new species. |
1959 |
| details |
Arenigian |
|
USSR(Estonian SSR) |
Eisenack,A. New types of Baltic Silurian Hystrichospheres and new species. |
1959 |
| details |
Early Gothlandian |
|
USSR(Baltic) |
Eisenack,A. New types of Baltic Silurian Hystrichospheres and new species. |
1959 |
| details |
Wenlockian |
|
England(Shropshire) |
Downie,C. Hystrichospheres from the Silurian Wenlock Shale of England. |
1959 |
| details |
Silurian |
|
France(Herault) |
Downie,C. Hystrichospheres from the Silurian Wenlock Shale of England. |
1959 |
| details |
Ordovician |
|
USSR |
Timofeev,B.V. Hystrichosphaeridae of the Cambrian |
1956 |
| original |
Late Gothlandian |
Early Devonian |
W.Germany(Bavaria) |
Sannemann,D. Hystrichospheres of the Silurian and Middle Devonian of the Frankenwald and their finestructure |
1955 |
| original |
Late Givetian |
|
W.Germany(Bavaria) |
Sannemann,D. Hystrichospheres of the Silurian and Middle Devonian of the Frankenwald and their finestructure |
1955 |
| original |
Middle Clintonian |
|
New York |
Fisher,J.C. The Hystrichosphaerids in the Clinton Group, (Silurian), of New York State. |
1955 |
| details |
Middle Gothlandian |
|
France(Finistere) |
Deunff,J. On the microplankton of the Gothlandian Armoricain |
1954 |
| details |
Late Couvinian |
|
France |
Deunff,J. Planktonic microorganisms (Hystrichospheres) in the Devonian of the Armoricain Massif. |
1954 |
| details |
Silurian |
|
Nd |
Deflandre,G. Groups Incertae Sedis.Hystrichospheres. chitinozoans. |
1952 |
| details |
Late Cambrian |
|
USSR(Estonian SSR) |
Eisenack,A. On Hystrichospheres and other microffossils of the Baltic Silurian and Cambrian |
1951 |
| details |
Ypresian |
|
Belgium |
Pastiels,A. Contribution to the study of microfossils of the Belgian Eocene. |
1948 |
| details |
Silurian |
|
Nd |
Deflandre,G. The problem of Hystrichospheres. |
1947 |
| details |
Silurian |
|
Baltic |
Deflandre,G. The problem of Hystrichospheres. |
1947 |
| details |
Silurian |
|
France(Herault) |
Deflandre,G. Microfossils from the Silurian Limestones of Montagne Noire. |
1944 |