| details |
Early Pennsylvanian |
|
West Virginia |
Dolph,G.E. The estimation of species richness in Pennsylvanian Coal Swamp communities. (In: Laboratory Exercises in Cell and Molecular Biology, Genetics, and Development. J.C.Glase, editor) |
1996 |
| details |
Early Desmoinesian |
|
Iowa |
Lesnikowska,A.D. et al. Two new species of Scolecopteris (Marattiales), sources of Torispora securis Balme and Thymospora thiessenii (Kosanke) Wilson et Venkatachala. |
1997 |
| details |
Westphalian D |
|
Kansas |
Peppers,R.A. Palynology of the Lost Branch Formation of Kansas: New insight the major floral transition at the Middle - Upper Pennsylvanian boundary. |
1997 |
| details |
Bolsovian |
|
Canada(Nova Scotia) |
Lyons,P.C. et al. Discovery of permineralized plants (coal balls) in the Foord Seam, (Bolsovian, ex Westphalian C), Stellarton Basin, Nova Scotia, Canada. (In: Proceedings of the 4th European Palaeobotanical and Palynological Conference. G.W.Herngreen, editor) |
1997 |
| details |
Early Desmoinesian |
|
Kentucky |
Eble,C.F. et al. Observations on the palynology, petrography and geochemistry of Western Kentucky Number 4 Coal Bed |
1999 |