| details |
Westphalian B |
Westphalian C |
Germany |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
| details |
Chesterian |
Springerian |
Utah |
Schemel,M.P. Carboniferous plant spores from Daggett County, Utah |
1950 |
| details |
Desmoinesian |
|
Missouri |
Jones,D.H. Palynology of the Bevier Coal of Missouri. |
1957 |
| 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 |
| original |
Desmoinesian |
|
Oklahoma |
Bordeau,K.V. Palynology of the Drywood Coal (Pennsylvanian) of Oklahoma. |
1964 |
| details |
Virgilian |
|
Texas |
Stone,J.F. Palynology of the Fort Belknap Coal (Pennsylvanian), of North Central Texas. |
1966 |
| details |
Virgilian |
|
Texas |
Stone,J.F. Palynology of the Eddleman Coal, (Pennsylvanian), of North-Central Texas. |
1969 |