| original |
Late Llanvirnian |
|
Sweden |
Staplin,F.L. et al. Evaluation of some acritarchous Hystrichosphere genera. |
1965 |
| details |
Late Llanvirnian |
|
E.Germany(Rostock) |
Burmann,G. Further organic microfossils from the Lower Ordovician. |
1970 |
| 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 |
Ashgillian |
|
Belgium |
Martin,F. The Upper Ordovician and Lower Silurian at Deerlijk (Belgium) |
1973 |
| details |
Late Llanvirnian |
|
France(Cotes du Nord) |
Lefort,J.P. et al. A study of the Pre-Mesozoic basement samples of the northern part of the Channel Islands Gulf. |
1974 |
| details |
Early Arenigian |
|
France |
Rauscher,R. Ordovician acritarchs from France. |
1974 |
| details |
Middle Ordovician |
Late Ordovician |
France |
Rauscher,R. Ordovician acritarchs from France. |
1974 |
| details |
Arenigian |
|
Mediterranean Sea |
VavrdovЎ,M. Geographical differentiation of Ordovician acritarch assemblages in Europe. |
1974 |
| details |
Llandoverian |
|
USSR(Belorussian SSR) |
Piskun,L.V. Palaeontologic characteristics of Silurian deposits of the Brest Depression. (In: Microfossils USSR. T.F.Vozzhennikova et al, editors) |
1974 |
| details |
Early Emsian |
|
England(Oxfordshire) |
Richardson,J.B. et al. Witney borehole reworked. |
1975 |
| details |
Early Famennian |
|
Germany(Rhineland) |
Jux,U. Phytoplankton from the Middle Upper Devonian (Nehdinian) of the Southwestern Bergisches Land, Rhenish Schiefergebirge. |
1975 |
| details |
Llanvirnian |
Llandeilian |
Libya |
Deunff,J. et al. Cambrian to Ordovician palynology and stratigraphy (Northwest Libya). |
1975 |
| details |
Middle Ordovician |
|
Finland |
Tynni,R. Ordovician hystrichospheres and chitinozoans in limestone from the Bothnian Sea. |
1975 |
| details |
Tremadocian |
|
USSR(Estonian SSR) |
Aristova,K.E. Assemblages of microplant fossils of Lower and Middle Ordovician type sections of Estonia |
1976 |
| details |
Late Emsian |
|
Nd |
Cramer,F.H. et al. Acritarchs from the La Vid Shales (Emsian to Lower Couvinian) at Colle, Leon, Spain. |
1976 |
| details |
Early Llanvirnian |
|
Wales(Anglesey) |
Fenton,J.P.G. Palynological evidence for the age of the Dulas Formation (Ordovician) in Anglesey (North Wales). |
1976 |
| details |
Nd |
|
Nd |
Eisenack,A. Microfossils of the Vaginatum Limestone of Halludden, Oland. |
1976 |