| details |
Morrowan |
Desmoinesian |
Iowa |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |
| details |
Early Morrowan |
|
Virginia |
Pierce,B.S. et al. Comparison of the petrography, palynology and paleobotany of the Little Fire Creek Coal Bed, Southwestern Virginia, USA. |
1994 |
| details |
Middle Pennsylvanian |
|
Kentucky |
Andrews,W.M. et al. A depositional model for Thge Taylor Coal Bed, Martin and Johns Counties, eastern Kentucky |
1996 |
| details |
Namurian C |
Westphalian B |
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 |