| 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 |
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 |
| details |
Westphalian A |
|
Canada(Nova Scotia) |
Hower,J.C. et al. Metalliferous coals of the Westphalian A Joggins Formation, Cumberland Basin, Nova Scotia, Canada: petrology, geochemistry, and palynology. |
2000 |