original |
Devonian |
|
Oklahoma |
Urban,J.B. Microfossils of the Woodford Shale (Devonian) of Oklahoma. |
1960 |
original |
Early Chesterian |
Middle Chesterian |
Oklahoma |
Harris,R.W. Palynology of the Sand Branch Member of the Caney Shale Formation, (Mississippian), of Southern Oklahoma. |
1971 |
original |
Devonian |
|
North America |
Nautiyal,A.C. Devonian acritarch distribution and paleolatitudes. |
1976 |
original |
Devonian |
|
Europe |
Nautiyal,A.C. Devonian acritarch distribution and paleolatitudes. |
1976 |
original |
Devonian |
|
Africa |
Nautiyal,A.C. Devonian acritarch distribution and paleolatitudes. |
1976 |
original |
Devonian |
|
Canada |
Nautiyal,A.C. The paleogeographic distribution of Devonian acritarchs and biofacies belts. |
1977 |
original |
Early Cambrian |
|
Finland |
Tynni,R. Lower Cambrian fossils and acritarchs in the sedimentary rocks of Soderfjarden, Western Finland. |
1978 |
original |
Early Maestrichtian |
|
Arctic Ocean |
Firth,J.V. et al. An Early Maestrichtian organic-walled phytoplankton cyst assemblage from an organic-rich Black Mud in core Fl-533, Alpha Ridge: Evidence for upwelling conditions in the Cretaceous Arctic Ocean |
1998 |
original |
Late Ludlovian |
Early Pridolian |
Libya |
Le H©riss©,A. Paleoecology, biostratigraphy and biogeography of late Silurian to early Devonian acritarchs and prasinophycean phycomata in well A161, Western Libya, North Africa |
2002 |