| 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 |
Westphalian |
Stephanian |
France |
Alpern,B. Succinct descriptions of the principal genera and species of pollen and spores found in the Coals of Central and eastern France. |
1956 |
| details |
Desmoinesian |
|
Oklahoma |
Wilson,L.R. et al. Plant microfossils of the Croweburg Coal. |
1956 |
| details |
Pennsylvanian |
|
Oklahoma |
Ruffin,J.H. Palynology of the Tebo Coal (Pennsylvanian) of Oklahoma |
1961 |
| details |
Middle Pennsylvanian |
|
Oklahoma |
Higgins,M.J. Stratigraphic position of the Coal Seam near Porter, Wagoner County, Oklahoma. |
1961 |
| details |
Middle Pennsylvanian |
|
Kansas |
Bond,T.A. Palynology of the Weir-Pittsburg Coal (Pennsylvanian) of Oklahoma and Kansas. |
1963 |
| details |
Westphalian B |
Westphalian D |
Illinois |
Sullivan,H.J. et al. Triquitrites and related genera. |
1964 |
| details |
Westphalian B |
Westphalian D |
Oklahoma |
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 |
Desmoinesian |
|
Oklahoma |
Bordeau,K.V. Palynology of the Drywood Coal (Pennsylvanian) of Oklahoma. |
1964 |
| details |
Pennsylvanian |
|
Oklahoma |
Wilson,L.R. Palynological assemblage resemblance in the Crowburg Coal of Oklahoma. |
1964 |
| details |
Middle Pennsylvanian |
|
Oklahoma |
Dolly,E.D. Palynology of the Bevier Coal (Pennsylvanian ) of Oklahoma. |
1965 |
| details |
Virgilian |
|
Texas |
Stone,J.F. Palynology of the Fort Belknap Coal (Pennsylvanian), of North Central Texas. |
1966 |
| details |
Missourian |
|
Oklahoma |
Upshaw,C.F. et al. Microspores from the upper part of the Coffeyville Formation (Pennsylvanian, Missourian), Tulsa County, Oklahoma. |
1967 |
| details |
Westphalian D |
|
Canada(Nova Scotia) |
Barss,M.S. Carboniferous and Permian spores of Canada. |
1967 |
| details |
Westphalian C |
|
Canada(Nova Scotia) |
Barss,M.S. Carboniferous and Permian spores of Canada. |
1967 |