| details |
Late Carboniferous |
|
Scotland(Fife) |
Knox,E.M. Palynology and Coal stratigraphy. |
1952 |
| details |
Late Mississippian |
Early Permian |
Pennsylvania |
Cross,A.T. et al. Representative microfossil floras of some Appalachian Coals |
1952 |
| details |
Desmoinesian |
|
Indiana |
Guennel,G.K. Fossil spores of the Alleghenian Coals in Indiana |
1952 |
| details |
Pennsylvanian |
|
Illinois |
Kosanke,R.M. A type of Boghead Coal from Illinois. |
1951 |
| details |
Nd |
|
Nd |
Cross,A.T. Plant microfossils and the application of their study to Coal stratigraphy. |
1950 |
| details |
Middle Pennsylvanian |
Late Pennsylvanian |
Indiana |
Baxter,R.W. Peltastrobus Reedae |
1950 |
| details |
Morrowan |
Desmoinesian |
Illinois |
Kosanke,R.M. Plant microfossils in correlation of Coal Beds. |
1947 |
| details |
Desmoinesian |
|
Illinois |
Kosanke,R.M. Plant microfossils in correlation of Coal Beds. |
1947 |
| details |
Desmoinesian |
Virgilian |
Illinois |
Kosanke,R.M. Plant microfossils in correlation of Coal Beds. |
1947 |
| details |
Nd |
|
Nd |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
| details |
Westphalian C |
|
W.Germany(N.Rhine) |
Kosanke,R.M. The characteristic plant microfossils of the Pittsburgh and Pomeroy Coals of Ohio. |
1943 |
| original |
Westphalian C |
|
Germany(Rhineland) |
Ibrahim,A.C. Spore forms of the Agir horizon of the Ruhr Basin. |
1933 |