| details |
Senonian |
|
France |
Deflandre-Rigaud,M. Microfossils of the Senonian Chert of Treport (Seine-Maritime). |
1955 |
| details |
Late Givetian |
|
W.Germany(Bavaria) |
Sannemann,D. Hystrichospheres of the Silurian and Middle Devonian of the Frankenwald and their finestructure |
1955 |
| details |
Late Givetian |
|
W.Germany(Bavaria) |
Sannemann,D. Hystrichospheres of the Silurian and Middle Devonian of the Frankenwald and their finestructure |
1955 |
| details |
Clintonian |
|
New York |
Fisher,J.C. The Hystrichosphaerids in the Clinton Group, (Silurian), of New York State. |
1955 |
| details |
Early Cretaceous |
Miocene |
Australia |
Deflandre,G. et al. On the fossil microplankton preserved in several Australian sedimentary rocks running from the Lower Cretaceous to the Upper Miocene. |
1954 |
| details |
Middle Gothlandian |
|
New York |
Fisher,D.W. A microflora in the Maplewood and Neahga Shales. |
1954 |
| details |
Middle Gothlandian |
|
New York |
Fisher,D.W. A microflora in the Maplewood and Neahga Shales. |
1954 |
| details |
Tertiary |
|
Nd |
Deflandre,G. Groups Incertae Sedis.Hystrichospheres. chitinozoans. |
1952 |
| details |
Oligocene |
|
Germany |
Gocht,H. Hystrichospheres and other microorganisms in Oligocene deposits of North and Central Germany. |
1952 |
| details |
Oligocene |
|
Germany |
Gocht,H. Hystrichospheres and other microorganisms in Oligocene deposits of North and Central Germany. |
1952 |
| details |
Oligocene |
|
Germany |
Gocht,H. Hystrichospheres and other microorganisms in Oligocene deposits of North and Central Germany. |
1952 |
| details |
Oligocene |
|
Germany |
Gocht,H. Hystrichospheres and other microorganisms in Oligocene deposits of North and Central Germany. |
1952 |
| details |
Oligocene |
|
Germany |
Gocht,H. Hystrichospheres and other microorganisms in Oligocene deposits of North and Central Germany. |
1952 |
| details |
Oligocene |
|
Germany |
Gocht,H. Hystrichospheres and other microorganisms in Oligocene deposits of North and Central Germany. |
1952 |
| details |
Oligocene |
|
Germany |
Gocht,H. Hystrichospheres and other microorganisms in Oligocene deposits of North and Central Germany. |
1952 |
| details |
Nd |
|
Nd |
Eisenack,A. On Hystrichospheres and other microffossils of the Baltic Silurian and Cambrian |
1951 |
| details |
Oligocene |
|
Nd |
Deflandre,G. The problem of Hystrichospheres. |
1947 |