| details |
Early Missourian |
|
Ohio |
Peppers,R.A. Palynological correlation of major Pennsylvanian, (Middle and Upper Carboniferous), chronostratigraphic boundaries in Illinois and other Acoal Basins. |
1996 |
| details |
Westphalian D |
|
Kentucky |
Hower,J.C. et al. Petrography, geochemistry and palynology of the Stockton Coal B (Middle Pennsylvanian), Martin County, Kentucky |
1996 |
| details |
Westphalian A |
|
Virginia |
Eble,C.F. Lower and Lower Middle Pennsylvanian coal palynofloras, southwestern Virginia. |
1996 |
| details |
Westphalian D |
|
Kansas |
Peppers,R.A. Palynology of the Lost Branch Formation of Kansas: New insight the major floral transition at the Middle - Upper Pennsylvanian boundary. |
1997 |