| details |
Emsian |
Frasnian |
Ghana |
Anan-Yorke,R. Devonian chitinozoa and acritarcha from exploratory oil wells on the shelf and coastal region of Ghana, West Africa. |
1974 |
| details |
Late Devonian |
|
Canada(Ontario) |
Eley,B.E. et al. Cherts of Southern Ontario |
1989 |
| details |
Wenlockian |
Gedinnian |
Libya |
Tekbali,A.O. et al. Silurian spores, acritarchs and chitinozoans from the Bani Walid Borehole of the Ghadamis Basin, Northwest Libya. (In: The Geology of Libya. M.J.Salem et al, editors) |
1991 |
| details |
Ordovician |
Silurian |
Canada(Arctic) |
Stasiuk,L.D. et al. Paleozoic hydrocarbon Sopurce Rocks, Truro Island, Arctic Canada; organic petrology, organic geochemistry and thermal maturity |
1994 |
| details |
Late Visean |
Early Namurian |
Niger |
Coquel,R. et al. Carboniferous palynology of north Niger and the Saharan Platform: Stratigraphic and paleogeographic implications. |
1995 |
| details |
Late Emsian |
Eifelian |
Canada(Arctic) |
McGregor,D.C. Appendix 4; Devonian Clastic Wedge-Blackley Formation. (In: Melvelle Island's Salt-Based Fold Belt, Arctic Canada. J.C.Harrison) |
1995 |
| details |
Lochkovian |
Pragian |
France(Bretagne) |
Baudu,V. et al. Relationships between organic-walled microfossils and palaeoenvironments: examples of two Devonian Formations from the Armorican Massif and Aquitaine |
1995 |
| details |
Caradocian |
|
Bolivia |
Gagnier,P.Y. et al. New paleontological and geological data on the Ordovician and Silurian of Bolivia |
1996 |
| details |
Early Paleozoic |
|
China |
Qi,Y. et al. Judging the organic maturity of lower Paleozoic hydrocarbon source rocks from palynology. |
2000 |