| details |
Desmoinesian |
|
Illinois |
Schopf,J.M. Spores from the Herrin (No. 6) Coal Bed in Illinois. |
1938 |
| details |
Westphalian C |
|
Germany(Rhineland) |
Schopf,J.M. Spores from the Herrin (No. 6) Coal Bed in Illinois. |
1938 |
| details |
Pennsylvanian |
|
Illinois |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
| details |
Late Pottsville |
|
West Virginia |
Cross,A.T. Spore floras of the Pennsylvanian of West Virginia and Kentucky |
1947 |
| details |
Late Pottsville |
|
Kentucky |
Cross,A.T. Spore floras of the Pennsylvanian of West Virginia and Kentucky |
1947 |
| details |
Carboniferous |
|
W.Germany(Saarland) |
Sen,J. Notes on the megaspores from the Goldenberg Col Lection of the Swedish Museum of natural history |
1957 |
| details |
Virgilian |
|
Texas |
Stone,J.F. Palynology of the Fort Belknap Coal (Pennsylvanian), of North Central Texas. |
1966 |
| details |
Virgilian |
|
Texas |
Stone,J.F. Palynology of the Eddleman Coal, (Pennsylvanian), of North-Central Texas. |
1969 |
| details |
Morrowan |
Desmoinesian |
Iowa |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |