| details |
Late Stephanian A |
Stephanian C |
Poland |
GŠ³recka,T. Results of palynostratigraphic tests of the youngest Carboniferous formation in the Lower Silesia Region. |
1981 |
| details |
Late Westphalian C |
|
West Virginia |
Eble,C.F. et al. Characteristic small spores of the Coalburg Coal, (Upper Pottsville, Pennsylvanian), in West Virginia. |
1984 |
| details |
Middle Westphalian D |
|
Kentucky |
Hower,J.C. et al. Petrology and palynology of the No.5 Block Coal Bed, Northeastern Kentucky |
1994 |
| 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 |
Duckmantian |
|
Kentucky |
Greb,S.F. et al. An Insitu occurrence of coal balls in the Amburgy Coal Bed, Pikeville Formation (Duckmantian), Central Appalachian Basin, USA. |
1999 |