| details |
Late Ordovician |
Silurian |
Worldwide |
Cramer,F.H. et al. Early Paleozoic palynomorph Provinces and paleoclimate. (In: Paleogeographic Provinces and Provinciality, Charles A. Ross, editor) |
1974 |
| details |
Late Ordovician |
|
Canada(Saskatchewan) |
Stasiuk,L.D. Fluorescence properties of Palaeozoic oil-prone Alginite in relation to hydrocarbon generation, Williston Basin, Saskatchewan, Canada. |
1994 |
| details |
Late Ordovician |
|
USSR(Lithuanian SSR) |
Bagdasaryan,L.L. Phytoplankton from the lower oil bearing formations of the Baltic States. |
1969 |
| details |
Late Ordovician |
|
USSR(Estonian SSR) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Late Ordovician |
|
USSR(Moldavian SSR) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Late Ordovician |
|
USSR(Komi ASSR) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Late Ordovician |
|
USSR(Yablonov Khrebet) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Late Ordovician |
|
USSR(Pre-Caucasus) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Late Ordovician |
|
USSR(Siberia) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Late Ordovician |
|
Illinois |
Guthrie,J.M. et al. Geochemical character and origin of oils in Ordovician Reservoir rock Illinois and Indiana, USA |
1995 |
| details |
Late Ordovician |
|
Indiana |
Guthrie,J.M. et al. Geochemical character and origin of oils in Ordovician Reservoir rock Illinois and Indiana, USA |
1995 |
| details |
Late Ordovician |
|
Michigan |
Obermajer,M. et al. Application of acritarch fluorescence in thermal maturity study. |
1999 |
| details |
Late Ordovician |
|
Canada(Saskatchewan) |
Pak,R. et al. Ichnology of the Yeoman Formation. |
2003 |
| details |
Late Llanvirnian |
Early Llandeilian |
Australia(W.Australia) |
Combaz,A. et al. Palynostratigraphy of the Ordovician from some boreholes in the Canning Basin, Western Australia. |
1972 |
| details |
Late Llandoverian |
Wenlockian |
North America |
Le H©riss©,A. Biogeography of upper Llandovery and Wenlock acritarchs. |
1995 |
| details |
Late Llandoverian |
Wenlockian |
Sweden(Gotland) |
Le H©riss©,A. Biogeography of upper Llandovery and Wenlock acritarchs. |
1995 |
| details |
Late Llandoverian |
Wenlockian |
Greenland |
Le H©riss©,A. Biogeography of upper Llandovery and Wenlock acritarchs. |
1995 |