| original |
Desmoinesian |
|
Illinois |
Peppers,R.A. Correlation and palynology of coals in the Carbondale and Spoon Formations (Pennsylvanian) of the northeastern part of the Illinois Basin. |
1970 |
| details |
Pennsylvanian |
|
Iowa |
Ravn,R.L. An introduction to the stratigraphic palynology of the Cherokee Group (Pennsylvanian) coals of Iowa. |
1979 |
| details |
Westphalian D |
Permian |
Czechoslovakia |
Planderova,E. et al. Biostratigraphic evaluation of Graphiteous Shales in the Zemplin Inselberg area (Eastern Slovakia). |
1981 |
| details |
Namurian B |
Westphalian A |
Iowa |
Ravn,R.L. et al. A Morrowan, (Upper Carboniferous), miospore flora from eastern Iowa, USA. |
1982 |
| details |
Westphalian 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 |
Late Visean |
|
Alaska |
Ravn,R.L. Miospores of the Kekiktuk Formation (Lower Carboniferous), Endicott Field Area, Alaska North Slope. |
1991 |
| details |
Westphalian D |
|
England(Staffordshire) |
Turner,N. The occurrence of Elaterites triferens Wilson 1943 in miospore assemblages from Coal Measures of Westphalian D age, North Staffordshire, England. |
1991 |
| details |
Early Atokan |
|
Tennessee |
Peppers,R.A. Palynological correlation of major Pennsylvanian, (Middle and Upper Carboniferous), chronostratigraphic boundaries in Illinois and other Acoal Basins. |
1996 |
| details |
Namurian C |
Westphalian A |
Virginia |
Eble,C.F. Lower and Lower Middle Pennsylvanian coal palynofloras, southwestern Virginia. |
1996 |