| original |
Middle 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 |
|
England |
Butterworth,M.A. et al. Descriptions of nine species of small spores from the British Coal Measures. |
1954 |
| details |
Late Carboniferous |
|
England(Staffordshire) |
Butterworth,M.A. et al. Microspore distribution in the Seams of the North Staffofdshire, Cannock Chase and North Wales Coalfields |
1954 |
| details |
Late Carboniferous |
|
Wales |
Butterworth,M.A. et al. Microspore distribution in the Seams of the North Staffofdshire, Cannock Chase and North Wales Coalfields |
1954 |
| details |
Early Westphalian D |
|
Illinois |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |
| details |
Desmoinesian |
|
Missouri |
Jones,D.H. Palynology of the Bevier Coal of Missouri. |
1957 |
| details |
Desmoinesian |
|
Kansas |
Habib,D. Palynological correlation of the Bevier and Wheeler Coals. |
1960 |
| details |
Desmoinesian |
|
Missouri |
Habib,D. Palynological correlation of the Bevier and Wheeler Coals. |
1960 |
| details |
Pennsylvanian |
|
Illinois |
Kosanke,R.M. Applied Paleozoic palynology. (In: Palynology in Oil Exploration, Aureal T. Cross, editor) |
1964 |
| details |
Westphalian D |
|
Nd |
Butterworth,M.A. Miospore distribution in the Namurian and Westphalian. |
1964 |
| details |
Westphalian D |
|
Nd |
Butterworth,M.A. Miospore distribution in the Namurian and Westphalian. |
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 |
Westphalian D |
|
England(Worcestershire) |
Spinner,E. Palynological evidence on the age of the Carboniferous Beds of Woodbury Hill, near Abberley, Worcestershire. |
1966 |
| details |
Allegheny |
|
Ohio |
Gray,L.R. Palynology of four Allegheny Coals, northern Appalachian Coal Field. |
1967 |
| details |
Westphalian D |
|
Canada(Nova Scotia) |
Barss,M.S. Carboniferous and Permian spores of Canada. |
1967 |