| details |
Silurian |
|
Brazil(Para) |
Boekel,N.M.Van Silurian microfossils from the Garape da Rainha, Pa Para |
1968 |
| details |
Late Ordovician |
|
USSR(Lithuanian SSR) |
Bagdasaryan,L.L. Phytoplankton from the lower oil bearing formations of the Baltic States. |
1969 |
| details |
Llanvirnian |
Ludlovian |
Canada(NWT) |
Jansonius,J. Classification and stratigraphic application of chitinozoa. |
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 |
| details |
Early Ordovician |
|
France(Ille-et-Vilaine) |
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 |
| details |
Ordovician |
|
Texas |
Kauffman,A.E. Chitinozoans in the subsurface Lower Paleozoic of West Texas |
1971 |
| details |
Ordovician |
|
Romania |
Beju,D. The present stage of the palynological researches concerning the Antecretaceous of Romania. |
1971 |
| details |
Ordovician |
|
USSR(Baltic) |
Myannil,R.M. The Zonal distribution of chitinozoans in the Ordovician of the East Baltic area. |
1972 |
| details |
Early Arenigian |
Late Strunian |
Nd |
Combaz,A. Stratigraphy of the chitinozoans. |
1972 |
| details |
Wenlockian |
|
France(Herault) |
Rauscher,R. Micropaleontological and stratigraphic research in the Ordovician and Silurian in France. Study of the acritarchs, chitinozoans and spores. |
1973 |
| details |
Siegenian |
Emsian |
Germany(Rhineland) |
Eschghi,I. et al. The Emsian in the Old Red facies on the northern Side of the Stavelot-Venn Massif, Germany-Belgium. |
1974 |
| details |
Siegenian |
Emsian |
Belgium |
Eschghi,I. et al. The Emsian in the Old Red facies on the northern Side of the Stavelot-Venn Massif, Germany-Belgium. |
1974 |
| details |
Silurian |
|
Canada(Gaspe Area) |
Achab,A. Palynostratigraphic study of several Layers of Silurian Formations of the Lac Matapedia Cyncline |
1975 |
| details |
Late Ordovician |
Silurian |
Alaska(North Slope) |
Carter,C. et al. Ordovician and Silurian fossils in Well cores from North Slope of Alaska. |
1975 |
| details |
Middle Ordovician |
|
Finland |
Tynni,R. Ordovician hystrichospheres and chitinozoans in limestone from the Bothnian Sea. |
1975 |
| details |
Silurian |
|
Romania |
Nastaseanu,S. et al. Paleogeographic evolution of Carboniferous terrains. General summary of the Paleozoic of Rumania. |
1975 |
| details |
Silurian |
|
Nd |
Laufeld,S. Paleoecology of Silurian chitinozoans. |
1977 |