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 |
Early Cambrian |
|
Finland |
Tynni,R. Lower Cambrian fossils and acritarchs in the sedimentary rocks of Soderfjarden, Western Finland. |
1978 |
original |
Middle 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 |