| original |
Middle Pennsylvanian |
|
Illinois |
Kosanke,R.M. Pennsylvanian spores of Illinois and their use in correlation. |
1950 |
| details |
Nd |
|
Oklahoma |
Hoffmeister,W.S. et al. Geologic range of Paleozoic plant spores in North America |
1955 |
| details |
Desmoinesian |
|
Oklahoma |
Wilson,L.R. et al. Plant microfossils of the Croweburg Coal. |
1956 |
| details |
Desmoinesian |
|
Missouri |
Jones,D.H. Palynology of the Bevier Coal of Missouri. |
1957 |
| details |
Desmoinesian |
|
Kansas |
Habib,D. Palynological correlation of the Bevier and Wheeler Coals. |
1960 |
| details |
Desmoinesian |
|
Missouri |
Habib,D. Palynological correlation of the Bevier and Wheeler Coals. |
1960 |
| details |
Pennsylvanian |
|
Oklahoma |
Clarke,R.T. Palynology of the Secor Coal (Pennsylvanian) of Oklahoma |
1961 |
| details |
Middle Pennsylvanian |
|
Oklahoma |
Gibson,L.B. Palynology and paleoecology of the Iron post Coal (Pennsylvanian), of Oklahoma |
1961 |
| details |
Desmoinesian |
|
Oklahoma |
Davis,P.N. Palynology of the Rowe Coal (Pennsylvanian) of Oklahoma |
1961 |
| details |
Desmoinesian |
|
Oklahoma |
Bordeau,K.V. Palynology of the Drywood Coal (Pennsylvanian) of Oklahoma. |
1964 |
| details |
Middle Pennsylvanian |
|
Oklahoma |
Dolly,E.D. Palynology of the Bevier Coal (Pennsylvanian ) of Oklahoma. |
1965 |
| details |
Allegheny |
|
Ohio |
Gray,L.R. Palynology of the Middle Kittanning Coal in Ohio |
1966 |
| details |
Allegheny |
|
Pennsylvania |
Gray,L.R. Palynology of the Middle Kittanning Coal in Ohio |
1966 |
| details |
Middle Pennsylvanian |
|
Kentucky |
Gray,L.R. et al. Palynology of the Schultztown Coal in Western Kentucky. |
1967 |
| details |
Allegheny |
|
Ohio |
Gray,L.R. Palynology of four Allegheny Coals, northern Appalachian Coal Field. |
1967 |
| details |
Westphalian D |
|
Canada(Nova Scotia) |
Barss,M.S. Carboniferous and Permian spores of Canada. |
1967 |
| details |
Westphalian D |
|
Canada(Maritime Prov.) |
Barss,M.S. et al. Age and the stratigraphy of the Pictou Group in the Maritime Provinces as revealed by fossil spores. |
1967 |