| original |
Middle Pennsylvanian |
|
Illinois |
Kosanke,R.M. Pennsylvanian spores of Illinois and their use in correlation. |
1950 |
| details |
Early Permian |
|
China(Liaoning) |
Imgrund,R. The sporites of the Kaiping Basin, their paleontologic and stratigraphic treatment in view of a parallelization with the Ruhr Carboniferous and the Pennsylvanian of Illinois. |
1952 |
| details |
Westphalian C |
|
Canada(Nova Scotia) |
Somers,G. A preliminary study of the spores from the Phalen Seam in the New Waterford District, Sydney Coal-Field, Nova Scotia. |
1952 |
| details |
Early Permian |
|
China(Liaoning) |
Imgrund,R. Dispersed spores of the Kaiping Basin, their paleontologic and stratigraphic comparison with the Upper Carboniferous of the Ruhr area and the Pennsylvanian of Illinois. |
1960 |
| details |
Pennsylvanian |
|
Oklahoma |
Clarke,R.T. Palynology of the Secor Coal (Pennsylvanian) of Oklahoma |
1961 |
| details |
Late Pennsylvanian |
|
Illinois |
Peppers,R.A. Palynology of the McLeansboro Group of Illinois and equivalent strata of Western Kentucky |
1961 |
| details |
Late Pennsylvanian |
|
Kentucky |
Peppers,R.A. Palynology of the McLeansboro Group of Illinois and equivalent strata of Western Kentucky |
1961 |
| details |
Allegheny |
|
Pennsylvania |
Frederiksen,N.O. Sporomorphs of the Brookville Seam near Brookville, Pennsylvania. |
1961 |
| details |
Pennsylvanian |
|
Oklahoma |
Urban,J.B. Palynology of the mineral Coal (Pennsylvanian) of Oklahoma and Kansas. |
1962 |
| details |
Pennsylvanian |
|
Kansas |
Urban,J.B. Palynology of the mineral Coal (Pennsylvanian) of Oklahoma and Kansas. |
1962 |
| details |
Early Stephanian |
|
France(Lorraine) |
Venkatachala,B.S. et al. Sporological study of the coals from Falkenberg (Faulquemont) Colliery, Lothringen (Lorrain) France. |
1964 |
| details |
Desmoinesian |
|
Missouri |
Upshaw,C.F. et al. Pennsylvanian miospores from a cave deposit in Devonian Limestone, Callaway County, Missouri. |
1965 |
| details |
Virgilian |
|
Texas |
Stone,J.F. Palynology of the Fort Belknap Coal (Pennsylvanian), of North Central Texas. |
1966 |
| details |
Early Westphalian B |
|
Canada(Nova Scotia) |
Barss,M.S. Carboniferous and Permian spores of Canada. |
1967 |
| details |
Chesterian |
Atokan |
Oklahoma |
Sanders,R.B. Palynological investigation of Desmoinesian and Missourian strata, Elk City area, Oklahoma. |
1967 |
| details |
Namurian C |
Westphalian B |
Poland |
Karczewska,J. Carboniferous spores from the Chelmi Boring (Eastern Poland). |
1967 |
| details |
Virgilian |
|
Texas |
Stone,J.F. Palynology of the Eddleman Coal, (Pennsylvanian), of North-Central Texas. |
1969 |