| details |
Middle Ordovician |
Late Ordovician |
Baltic |
Eisenack,A. On the systematics of some Palaeozoic Hystrichospheres (Acritarch) from the Baltic Region. |
1969 |
| details |
Silurian |
|
Baltic |
Deflandre,G. Groups Incertae Sedis.Hystrichospheres. chitinozoans. |
1952 |
| details |
Ypresian |
|
Belgium |
Sarjeant,W.A.S. A restudy of Pastiels' (1948) dinoflagellate cysts from the Early Eocene of Belgium. |
1986 |
| details |
Famennian |
|
Belgium |
Caro-Moniez,M. On an Upper Devonian horizon of spores of the Bore of Tournai (Belgium). |
1962 |
| details |
Ypresian |
|
Belgium |
Pastiels,A. Contribution to the study of microfossils of the Belgian Eocene. |
1948 |
| details |
Silurian |
Early Devonian |
Czechoslovakia |
Klinec,A. et al. On the Old Paleozoic age of the Hron complex of Vesporides |
1975 |
| details |
Ludlovian |
|
E.Germany(Karl Marx) |
Behr,H.J. et al. Chitinozoan fauna from the Early Palaeozoic of Thuringia |
1966 |
| details |
Tremadocian |
|
England(Shropshire) |
Downie,C. An assemblage of microplankton from the Shineton Shale (Tremadocian) |
1958 |
| details |
Silurian |
|
France(Vendee) |
Le H©riss©,A. et al. The Mazuelloids from the Silurian of Vendee (France), a group still enigmatical. |
1991 |
| 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 |
Late Proterozoic |
|
India(Karnataka) |
Suresh,R. et al. Palynology of the Chuaria Shales from the Bhima Series Gulbarga District, Karnataka, India. |
1981 |
| details |
Nd |
|
Nd |
Obut,A.M. On the geographical distribution, comparative morphology, ecology, phylogeny, and the taxonomic position of chitinozoa. |
1973 |
| details |
Nd |
|
Nd |
Obut,A.M. On the geographical distribution, comparative morphology, ecology, phylogeny, and the taxonomic position of chitinozoa. |
1973 |
| details |
Nd |
|
Nd |
De Coninck,J. Organic walled microfossils of the Lower Ypresian of Quenast. |
1986 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Nd |
|
Nd |
Eisenack,A. The Construction of the walls of the dinoflagellates. |
1939 |