| original |
Middle Pennsylvanian |
Late Pennsylvanian |
Illinois |
Kosanke,R.M. Pennsylvanian spores of Illinois and their use in correlation. |
1950 |
| details |
Desmoinesian |
|
Iowa |
Schemel,M.P. Small spores of the Mystic Coal of Iowa. |
1951 |
| 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 |
Desmoinesian |
|
Oklahoma |
Morgan,J.L. Spores of Mcalester-Stigler Coal. |
1955 |
| details |
Desmoinesian |
|
Missouri |
Jones,D.H. Palynology of the Bevier Coal of Missouri. |
1957 |
| 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 |
Middle Pennsylvanian |
|
Oklahoma |
Higgins,M.J. Stratigraphic position of the Coal Seam near Porter, Wagoner County, Oklahoma. |
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 |
Middle Pennsylvanian |
|
Kansas |
Bond,T.A. Palynology of the Weir-Pittsburg Coal (Pennsylvanian) of Oklahoma and Kansas. |
1963 |
| details |
Westphalian B |
|
Illinois |
Sullivan,H.J. et al. Triquitrites and related genera. |
1964 |
| details |
Desmoinesian |
|
Oklahoma |
Dempsey,J.E. A palynological investigation of the Lower and Upper Mcalester Coals (Pennsylvanian) of Oklahoma. |
1964 |
| details |
Pennsylvanian |
|
Oklahoma |
Urban,L.L. Palynology of the Drywood and Bluejacket Coals (Pennsylvanian) of Oklahoma. |
1965 |
| details |
Middle Pennsylvanian |
|
Oklahoma |
Dolly,E.D. Palynology of the Bevier Coal (Pennsylvanian ) of Oklahoma. |
1965 |
| details |
Missourian |
|
Oklahoma |
Edwards,W.A. Palynology of the Francis Shale (Pennsylvanian) from near Ada, Oklahoma. |
1966 |
| details |
Westphalian A |
|
United Kingdom |
Smith,A.H.V. et al. Miospores in the coal seams of the Carboniferous of Great Britain. |
1967 |
| details |
Early Westphalian A |
|
United Kingdom |
Smith,A.H.V. et al. Miospores in the coal seams of the Carboniferous of Great Britain. |
1967 |