| original |
Late Pennsylvanian |
|
Pennsylvania |
Clendening,J.A. Gillespieisporites, gen.nov., and Laevigatosporites plicatus, sp.nov., from Dunkard strata of the Appalachian Basin. |
1969 |
| details |
Stephanian B |
Stephanian C |
USA |
Clendening,J.A. Sporological evidence on the geological age of the Dunkard strata in the Appalachian Basin. |
1970 |
| details |
Late Pennsylvanian |
|
Pennsylvania |
Clendening,J.A. Stratigraphic placement of the Dunkard according to palynological assemblages. |
1972 |
| details |
Late Pennsylvanian |
|
West Virginia |
Clendening,J.A. Stratigraphic placement of the Dunkard according to palynological assemblages. |
1972 |
| details |
Late Pennsylvanian |
|
West Virginia |
Clendening,J.A. Palynological evidence for a Pennsylvanian age assignment of the Dunkard Group in the Appalachian Basin. |
1974 |
| details |
Pennsylvanian |
|
Pennsylvania |
Clendening,J.A. Palynological evidence for a Pennsylvanian age assignment of the Dunkard Group in the Appalachian Basin. |
1974 |
| details |
Virgilian |
Gearyan |
Kansas |
Clendening,J.A. Palynological evidence for a Pennsylvanian age assignment of the Dunkard Group in the Appalachian Basin. |
1974 |
| details |
Early Virgilian |
Late Wolfcampian |
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 |
Late Pennsylvanian |
|
West Virginia |
Gillespie,W.H. et al. Plant fossils of West Virginia. |
1978 |
| details |
Late Virgilian |
|
Texas |
Dickey,B.C. et al. Palynostratigraphy of the Newcastle Coal of North Central Texas, USA. |
1981 |
| details |
Missourian |
|
Oklahoma |
Wilson,L.R. Evidence for a new Desmoinesian - Missourian boundary, (Middle Pennsylvanian), in Tulsa County, Oklahoma, USA. |
1984 |
| details |
Wolfcampian |
|
Kansas |
Barker,G.W. Pollen and spores from the Lower Permian (Gearyan) of Kansas, USA. |
1988 |
| details |
Late Pennsylvanian |
|
West Virginia |
Kosanke,R.M. Palynological analyses of Upper Pennsylvanian Coal Beds and adjacent strata from the proposed Pennsylvanian system stratotype in West Virginia |
1988 |
| details |
Early Virgilian |
|
New Mexico |
Willard,D.A. Early Virgilian palynofloras from the Kinney Quarry, Manzanita Mountains, New Mexico. (In: Geology and paleontology of the Kinney Brick Quarry, Late Pennsylvanian, Central New Mexico) |
1992 |
| details |
Early Stephanian |
|
Texas |
Gennett,J.A. et al. Palynology of the Upper Pennsylvanian Dalton Coal, Palo Pinto County, Texas, USA. |
1993 |
| details |
Late Pennsylvanian |
|
Illinois |
Willard,D.A. et al. Paleobotany and palynology of the Bristol Hill Coal Member (Bond Formation) and Friendsville Coal Member (Mattoon Formation) of the Illinois Basin (Upper Pennsylvanian) |
1994 |
| details |
Desmoinesian |
Missourian |
Ohio |
Kosanke,R.M. et al. Late Pennsylvanian climate changes and palynomorph extinctions |
1996 |