| original |
Pennsylvanian |
|
Iowa |
Ravn,R.L. An introduction to the stratigraphic palynology of the Cherokee Group (Pennsylvanian) coals of Iowa. |
1979 |
| details |
Early Namurian |
Late Namurian |
England(Northumberland) |
Butterworth,M.A. et al. Namurian and Basal Westphalian A miospore assemblage from the Featherstone area, Northern England. |
1982 |
| details |
Late Namurian |
Westphalian A |
Iowa |
Ravn,R.L. et al. A Morrowan, (Upper Carboniferous), miospore flora from eastern Iowa, USA. |
1982 |
| details |
Namurian A |
Westphalian B |
Europe |
Butterworth,M.A. Upper Carboniferous. (In: Pollen and Spore Biostratigraphy of the Phanerozoic in Northwest Europe) |
1984 |
| details |
Namurian A |
Westphalian B |
Europe |
Butterworth,M.A. Upper Carboniferous. (In: Pollen and Spore Biostratigraphy of the Phanerozoic in Northwest Europe) |
1984 |
| details |
Morrowan |
Desmoinesian |
Iowa |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |
| details |
Westphalian A |
|
England(Northumberland) |
McLean,D. Miospore assemblages from the Gastrioceras listeri marine Band and associated Coal Measures Sheffield England. |
1990 |
| details |
Early Westphalian A |
|
England(Yorkshire) |
McLean,D. Miospore assemblages from the Gastrioceras listeri marine Band and associated Coal Measures Sheffield England. |
1990 |
| details |
Early Westphalian A |
|
North America |
McLean,D. Miospore assemblages from the Gastioceras listeri Marine Band and associated coal measures, Sheffield, England. |
1991 |
| details |
Westphalian A |
|
England(Northumberland) |
McLean,D. Miospore assemblages from the Gastioceras listeri Marine Band and associated coal measures, Sheffield, England. |
1991 |
| details |
Middle Pennsylvanian |
|
Kentucky |
Andrews,W.M. et al. A depositional model for Thge Taylor Coal Bed, Martin and Johns Counties, eastern Kentucky |
1996 |