| details |
Late Eocene |
Middle Oligocene |
Poland |
Grabowska,I. Stratigraphy of Palaeogene sediments in the Polish Lowlands in the light of research on microflora. |
1974 |
| details |
Early Cambrian |
|
Poland |
Piskun,L.V. et al. Paleobiogeography of the Lower Cambrian deposits of Byelorussia |
1992 |
| details |
Early Liassic |
|
Poland |
Fijalkowska,A. Spore-pollen investigations of the Lower Liassic deposits in the Skarzysko-Kamienna Ig 1 borehole Profile (The northern Margin of the Swietokrzyskie Mts) |
1989 |
| details |
Late Zechstein |
|
Poland |
Fijalkowska,A. Palynostratigraphy of the Zechstein and Lower Buntsandstein in the Northwestern Swiety Krzyz Mountains |
1992 |
| details |
Early Tremadocian |
|
Poland |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Llandoverian |
Wenlockian |
Paraguay |
Wood,G.D. et al. Chitinozoans and microplankton from the Silurian Vargas Pena Shale, (Itacurubi Group) Chaco Basin, Paraguay. |
1988 |
| details |
Missourian |
|
Oklahoma |
Wilson,L.R. et al. A paleoecological interpretation of the Francis Shale Formation, (Missourian), based upon palynology and Invertebrate paleontolty. |
1981 |
| details |
Desmoinesian |
|
Oklahoma |
Wilson,L.R. A preliminary assessment of palynomorph stratigraphy in Morrow and Atoka rocks of the Quachita Mountains, Oklahoma. |
1976 |
| details |
Middle Ordovician |
Late Ordovician |
Ohio |
Jacobson,S.R. Acritarchs as paleoenvironmental indicators in Middle and Upper Ordovician rocks from Kentucky, Ohio and New York. |
1979 |
| details |
Ordovician |
Silurian |
Ohio |
Gray,J. et al. Palynological evidence bearing on the Ordovician Silurian Paraconformity in Ohio |
1972 |
| details |
Middle Ordovician |
Late Ordovician |
Ohio |
Jacobson,S.R. Biostratigraphy and paleoecology of acritarchs from Middle and Upper Ordovician rocks in the Cincinnati Region. |
1977 |
| details |
Middle Ordovician |
Late Ordovician |
Ohio |
Jacobson,S.R. Middle and Upper Ordovician acritarchs, Eastern Midcontinent, USA. |
1977 |
| details |
Pleistocene |
|
Norway(Offshore) |
Combaz,A. et al. Microscopic study of organic material in Quaternary sediments from the Norway Sea |
1977 |
| details |
Early Cambrian |
|
Norway |
Vidal,G. et al. Proterozoic plankton. |
1983 |
| details |
Early Cambrian |
|
Norway |
Vidal,G. et al. Proterozoic plankton. |
1983 |
| details |
Late Cambrian |
|
Norway |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Late Cambrian |
|
North America |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |