| details |
Llanvirnian |
Caradocian |
England(Shropshire) |
Jenkins,W.A.M. Ordovician chitinozoa from Shropshire. |
1967 |
| details |
Early Cambrian |
|
Poland |
Wazynska,H. Preliminary microfloristic examinations of the Sinian and Cambrian deposits from the Bialowieza area |
1967 |
| details |
Middle Gothlandian |
Late Gothlandian |
Spain |
Cramer,F.H. et al. Taxonomic considerations on the acritarchs of the Middle and Upper Silurian of northern Spain. |
1968 |
| details |
Late Ordovician |
|
Ohio |
Cramer,F.H. et al. Taxonomic considerations on the acritarchs of the Middle and Upper Silurian of northern Spain. |
1968 |
| details |
Late Ordovician |
|
Oklahoma |
Cramer,F.H. et al. Taxonomic considerations on the acritarchs of the Middle and Upper Silurian of northern Spain. |
1968 |
| details |
Early Ordovician |
|
Sweden |
Eisenack,A. On the reproduction of Palaeozoic hystrichospheres. |
1968 |
| details |
Early Ordovician |
|
Sweden |
Eisenack,A. On the reproduction of Palaeozoic hystrichospheres. |
1968 |
| details |
Llandoverian |
|
Sweden |
Eisenack,A. Microfossils of a secondary deposit from the Borkholm Stage, Baltic Ordovician, F2. |
1968 |
| details |
Llandoverian |
|
Sweden |
Eisenack,A. Microfossils of a secondary deposit from the Borkholm Stage, Baltic Ordovician, F2. |
1968 |
| details |
Caradocian |
|
England(Kent) |
Lister,T.R. et al. The Basement Beds of the Bobbing borehole, Kent. |
1969 |
| details |
Early Famennian |
|
Belgium |
Stockmans,F. et al. Acritarchs of the Lower Famennian. |
1969 |
| details |
Llanvirnian |
Early Caradocian |
France(Finistere) |
Henry,J.L. Micro-organisms incertae sedis (acritarchs and chitinozoans) of the Ordovician of the Crozon Peninsula (Finistere). Beds of Mort-Anglaise and Kerglintin. |
1969 |
| details |
Early Caradocian |
|
France(Finistere) |
Henry,J.L. Micro-organisms incertae sedis (acritarchs and chitinozoans) of the Ordovician of the Crozon Peninsula (Finistere). Beds of Mort-Anglaise and Kerglintin. |
1969 |
| details |
Arenigian |
Llandoverian |
Baltic |
Eisenack,A. On the systematics of some Palaeozoic Hystrichospheres (Acritarch) from the Baltic Region. |
1969 |
| details |
Arenigian |
Llandoverian |
Baltic |
Eisenack,A. On the systematics of some Palaeozoic Hystrichospheres (Acritarch) from the Baltic Region. |
1969 |
| details |
Arenigian |
Llandoverian |
Baltic |
Eisenack,A. On the systematics of some Palaeozoic Hystrichospheres (Acritarch) from the Baltic Region. |
1969 |
| details |
Arenigian |
Llandoverian |
Baltic |
Eisenack,A. On the systematics of some Palaeozoic Hystrichospheres (Acritarch) from the Baltic Region. |
1969 |