| original |
Late Westphalian B |
Early Westphalian C |
Oklahoma |
Dempsey,J.E. Sporomorphs from Lower and Upper Mcalester Coals (Pennsylvanian) of Oklahoma |
1967 |
| details |
Late Westphalian B |
Early Westphalian C |
Arkansas |
Dempsey,J.E. Sporomorphs from Lower and Upper Mcalester Coals (Pennsylvanian) of Oklahoma |
1967 |
| details |
Desmoinesian |
Missourian |
Texas |
Gupta,S. Miospores from the Desmoinesian-Missourian boundary Formations of Texas and the age of the Salesville Formation |
1970 |
| details |
Late Desmoinesian |
Early Missourian |
Texas |
Gupta,S. Miofloral succession and interpretation of the Base of the Permian system in the eastern Shelf of North Central Texas, USA. |
1977 |
| details |
Namurian B |
Westphalian A |
Iowa |
Ravn,R.L. et al. A Morrowan, (Upper Carboniferous), miospore flora from eastern Iowa, USA. |
1982 |
| details |
Morrowan |
Desmoinesian |
Iowa |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |
| details |
Namurian |
Westphalian |
North Sea |
Butterworth,M.A. et al. Miospores from the Westphalian A and B of northern England |
1988 |
| details |
Westphalian A |
|
North Sea |
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 |
McLean,D. Miospore assemblages from the Gastioceras listeri Marine Band and associated coal measures, Sheffield, England. |
1991 |
| details |
Westphalian A |
|
North Sea |
McLean,D. Miospore assemblages from the Gastioceras listeri Marine Band and associated coal measures, Sheffield, England. |
1991 |
| details |
Late Morrowan |
|
West Virginia |
Peppers,R.A. Palynological correlation of major Pennsylvanian, (Middle and Upper Carboniferous), chronostratigraphic boundaries in Illinois and other Acoal Basins. |
1996 |