| original |
Desmoinesian |
|
Illinois |
Peppers,R.A. Correlation and palynology of coals in the Carbondale and Spoon Formations (Pennsylvanian) of the northeastern part of the Illinois Basin. |
1970 |
| details |
Westphalian D |
|
Czechoslovakia |
KalibovЎ-KaiserovЎ,M. Palynological research of Carboniferous relics west of the Plzen Coal Basin. |
1979 |
| details |
Late Desmoinesian |
Early Missourian |
Kansas |
Peppers,R.A. Palynological correlation of major Pennsylvanian, (Middle and Upper Carboniferous), chronostratigraphic boundaries in Illinois and other Acoal Basins. |
1996 |