| details |
Ordovician |
|
Baltic |
Eisenack,A. On the systematics of some Palaeozoic Hystrichospheres (Acritarch) from the Baltic Region. |
1969 |
| details |
Silurian |
|
Nd |
Evitt,W.R. Dinoflagellates and other organisms in palynological preparations. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |
| details |
Late Ordovician |
|
USSR(Lithuanian SSR) |
Bagdasaryan,L.L. Phytoplankton from the lower oil bearing formations of the Baltic States. |
1969 |
| details |
Late Arenigian |
|
Poland |
Gгrka,H. Microorganisms of the Ordovician of Poland. |
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 |
Llanvirnian |
|
France(Ille-et-Vilaine) |
Paris,F. et al. The Llanvirnian paleoplankton of La Roche-Au-Merle |
1970 |
| details |
Early Chesterian |
Middle Chesterian |
Oklahoma |
Harris,R.W. Palynology of the Sand Branch Member of the Caney Shale Formation, (Mississippian), of Southern Oklahoma. |
1971 |
| details |
Middle Ordovician |
|
Sweden |
Kjellstrжm,G. Ordovician microplankton (baltisphaerids) from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Nd |
|
Nd |
Kjellstrжm,G. Ordovician microplankton (baltisphaerids) from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Nd |
|
Nd |
Kjellstrжm,G. Ordovician microplankton (baltisphaerids) from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Nd |
|
Nd |
Kjellstrжm,G. Ordovician microplankton (baltisphaerids) from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Nd |
|
Nd |
Kjellstrжm,G. Ordovician microplankton (baltisphaerids) from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Ordovician |
|
France(Aquitaine) |
Paris,F. The Ordovician of the Menez-Belair Syncline (Middle Ormorican Syncline), its characteristics and place in Central-Armorican Paleoeography. |
1971 |
| details |
Ordovician |
|
Poland |
Jagielska,L. Flora of the Ordovician;Microflora |
1972 |
| 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 |