| original |
Middle Pennsylvanian |
Late Pennsylvanian |
Illinois |
Kosanke,R.M. Pennsylvanian spores of Illinois and their use in correlation. |
1950 |
| 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 |
Late Westphalian B |
|
W.Germany(N.Rhine) |
Potonie,R. et al. The sporae dispersae of the Ruhr Carboniferous, their morphography and stratigraphy with reviews of species of other areas. Part 1. |
1955 |
| details |
Middle Pennsylvanian |
Late Pennsylvanian |
Illinois |
Potonie,R. et al. The sporae dispersae of the Ruhr Carboniferous, their morphography and stratigraphy with reviews of species of other areas. Part 1. |
1955 |
| 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 |
Pennsylvanian |
|
Kansas |
Urban,J.B. Palynology of the mineral Coal (Pennsylvanian) of Oklahoma and Kansas. |
1962 |
| details |
Pennsylvanian |
|
Oklahoma |
Urban,J.B. Palynology of the mineral Coal (Pennsylvanian) of Oklahoma and Kansas. |
1962 |
| details |
Conemaugh |
Monongahela |
Kentucky |
Peppers,R.A. Spores in strata of Late Pennsylvanian cyclothems in the Illinois Basin. |
1964 |
| details |
Conemaugh |
Monongahela |
Illinois |
Peppers,R.A. Spores in strata of Late Pennsylvanian cyclothems in the Illinois Basin. |
1964 |
| details |
Late Pennsylvanian |
|
Kentucky |
Peppers,R.A. Spores in strata of Late Pennsylvanian cyclothems in the Illinois Basin. |
1964 |
| details |
Late Pennsylvanian |
|
Illinois |
Peppers,R.A. Spores in strata of Late Pennsylvanian cyclothems in the Illinois Basin. |
1964 |
| 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 |
Pennsylvanian |
|
Kentucky |
Kosanke,R.M. Palynological studies of the Coals of the Princess Reserve District in northeastern Kentucky |
1973 |