| details |
Early Devonian |
|
Uruguay |
Martinez-Macchiavello,J.C. Some acritarchs from a sample from the Lower Devonian (Cordobes) of Blanquillo, Department of Durazno, Uruguay |
1969 |
| details |
Late Ordovician |
|
USSR(Estonian SSR) |
Rudavskaya,V.A. Palaeozoic Hystrichospheres. |
1969 |
| details |
Ludlovian |
|
France |
Paris,F. et al. Discovery of a rich microbiota of acritarchs and chitinozoans in the formations of the Median Syncline (Armoricain Massive, environs of Saint-Medard-sur-Ille). Presence of spores and scolecodonts. |
1969 |
| details |
Llandeilian |
|
France(Bretagne) |
Le Corre,C. et al. On the presence of acritarchs at the top of the Middle Ordovician Shales south of Rennes. |
1969 |
| details |
Silurian |
|
France(Maine-et-Loire) |
Moreau-Benoit,A. Palynologic study of the Shale-Sand Formations associated with the Chalonnes Limestone of the Saint-Charles and Tarare Qarries at Chaudefonds (Maine-et-Loire). |
1969 |
| details |
Arenigian |
Llanvirnian |
Belgium |
Martin,F. On the age of the shales of the Caledonian Belt of the Sambre-Meuse at Ombret. |
1969 |
| details |
Early Ashgillian |
|
Czechoslovakia |
KonzalovЎ-MazancovЎ,M. Acritarcha Evitt 1963 from the Lower Ashgill of Bohemia |
1969 |
| details |
Llandoverian |
|
Spain |
Casielles,J.M. et al. Discovery of chitinozoas and acritarchs in the Silurian Slates of Teverga (Asturias). |
1969 |
| details |
Arenigian |
Llanvirnian |
England(Durham) |
Lister,T.R. et al. Phytoplankton, (acritarchs), from a small Ordovician Inlier in Teesdale, (County Durham), England. |
1970 |
| details |
Late Llandoverian |
|
Canada(Nova Scotia) |
Cramer,F.H. Arcitarchs and chitinozoans from the Silurian Ross Brook Formation, Nova Scotia |
1970 |
| details |
Early Gothlandian |
|
New York |
Cramer,F.H. et al. Acritarchs from the Lower Silurian Neahga Formation, Niagara Peninsula, North America. |
1970 |
| details |
Early Gothlandian |
|
Canada(Ontario) |
Cramer,F.H. et al. Acritarchs from the Lower Silurian Neahga Formation, Niagara Peninsula, North America. |
1970 |
| details |
Early Devonian |
Middle Devonian |
France(Cotes du Nord) |
Lefort,J.P. et al. Discovery of Paleozoic microplankton in western Sud de La Manche. |
1970 |
| details |
Silurian |
|
Nd |
Cramer,F.H. Distribution of selected Silurian acritarchs an account of the palynostratigraphy and paleogeography of selected Silurian acritarch Taxa |
1970 |
| details |
Ordovician |
|
Baltic |
Sarjeant,W.A.S. Xanthidia, Palinospheres and "Hystrix": A review of the study of fossil unicellular microplankton with organic cell walls. |
1970 |
| details |
Llanvirnian |
|
France(Ille-et-Vilaine) |
Paris,F. et al. The Llanvirnian paleoplankton of La Roche-Au-Merle |
1970 |
| details |
Early Ordovician |
|
France(Mayenne) |
Deunff,J. et al. A microplankton of chitinozoans and acritarchs from some shale layers of the Lower Ordovician sandstone of Brittany (Mayene and South of Rennes). |
1970 |