| original |
Pennsylvanian |
|
Iowa |
Ravn,R.L. An introduction to the stratigraphic palynology of the Cherokee Group (Pennsylvanian) coals of Iowa. |
1979 |
| details |
Morrowan |
Desmoinesian |
Iowa |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |
| details |
Late Westphalian C |
|
Netherlands |
de Laar,J.G.M. Van et al. On-Shore Carboniferous palynology of the Netherlands |
1989 |
| details |
Late Westphalian C |
|
Netherlands |
de Laar,J.G.M. Van et al. Westphalian palynology of the Netherlands based on six continuously cored boreholes. |
1990 |
| details |
Westphalian A |
|
Virginia |
Eble,C.F. Lower and Lower Middle Pennsylvanian coal palynofloras, southwestern Virginia. |
1996 |