| details |
Early Caradocian |
|
Sweden |
Staplin,F.L. et al. Evaluation of some acritarchous Hystrichosphere genera. |
1965 |
| details |
Early Ordovician |
|
Sweden |
Staplin,F.L. et al. Evaluation of some acritarchous Hystrichosphere genera. |
1965 |
| details |
Arenigian |
Llandoverian |
Baltic |
Eisenack,A. On the systematics of some Palaeozoic Hystrichospheres (Acritarch) from the Baltic Region. |
1969 |
| details |
Late Llanvirnian |
|
E.Germany(Rostock) |
Burmann,G. Further organic microfossils from the Lower Ordovician. |
1970 |
| details |
Middle Ordovician |
|
Sweden |
Kjellstrжm,G. Ordovician microplankton (baltisphaerids) from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Early Ordovician |
|
Sweden |
Johansson,H.G. et al. Notes on a new locality at Ljungsbro in the Lower Ordovician of Ostergotland, Southern Sweden. |
1972 |
| details |
Middle Ordovician |
|
Sweden |
Kjellstrжm,G. Lower Viruan microplankton from a Boring in Oland, Sweden |
1972 |
| details |
Arenigian |
Llanvirnian |
France(Pas-de-Calais) |
Rauscher,R. Micropaleontological and stratigraphic research in the Ordovician and Silurian in France. Study of the acritarchs, chitinozoans and spores. |
1973 |
| details |
Arenigian |
Ashgillian |
France(Gers) |
Rauscher,R. Micropaleontological and stratigraphic research in the Ordovician and Silurian in France. Study of the acritarchs, chitinozoans and spores. |
1973 |
| details |
Arenigian |
Ashgillian |
France(Gers) |
Rauscher,R. Micropaleontological and stratigraphic research in the Ordovician and Silurian in France. Study of the acritarchs, chitinozoans and spores. |
1973 |
| details |
Early Llandoverian |
|
Belgium |
Martin,F. The Upper Ordovician and Lower Silurian at Deerlijk (Belgium) |
1973 |
| details |
Early Ordovician |
|
Baltic |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1973 |
| details |
Ordovician |
|
Sweden |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1973 |
| details |
Caradocian |
Ashgillian |
Algeria |
Jardin©,S. et al. Stratigraphic distribution of acritarchs in the Palaeozoic of the Algerian Sahara. |
1974 |
| details |
Tremadocian |
Llandeilian |
Nd |
Diez,M.D.C.R. et al. Range chart of selected Lower Paleozoic acritarch Taxa. |
1974 |
| details |
Quaternary |
|
Sweden |
Tralau,H. Micropalaeontological analysis of Ordovician Flint artifacts from a Stone Age settlement at Ire, Gotland. (In: Studies in North European Archaeology. G.O.Janzon, editor) |
1974 |
| details |
Tremadocian |
Ashgillian |
USSR(Russian Platform) |
Umnova,N.I. Silurian and Ordovician acritarch assemblages from the northern and western parts of the Russian Platform. |
1974 |