| details |
Carboniferous |
|
Pennsylvania |
Clendening,J.A. et al. Characteristic small spores of the Pittsburgh Coal in West Virginia and Pennsylvania |
1963 |
| details |
Carboniferous |
|
West Virginia |
Clendening,J.A. et al. Characteristic small spores of the Pittsburgh Coal in West Virginia and Pennsylvania |
1963 |
| details |
Carboniferous |
|
West Virginia |
Clendening,J.A. et al. Characteristic small spores of the Pittsburgh Coal in West Virginia and Pennsylvania |
1963 |
| details |
Monongahela |
|
West Virginia |
Clendening,J.A. Characteristic small spores of the Redstone Coal in West Virginia. |
1965 |
| details |
Late Pennsylvanian |
Early Permian |
Pennsylvania |
Clendening,J.A. Small spores applicable to stratigraphic correlation in the Dunkard Basin of West Virginia and Pennsylvania. |
1962 |
| details |
Late Pennsylvanian |
Early Permian |
West Virginia |
Clendening,J.A. Small spores applicable to stratigraphic correlation in the Dunkard Basin of West Virginia and Pennsylvania. |
1962 |
| details |
Late Pennsylvanian |
Early Permian |
Pennsylvania |
Clendening,J.A. Small spores applicable to stratigraphic correlation in the Dunkard Basin of West Virginia and Pennsylvania. |
1962 |
| details |
Late Pennsylvanian |
Early Permian |
West Virginia |
Clendening,J.A. Small spores applicable to stratigraphic correlation in the Dunkard Basin of West Virginia and Pennsylvania. |
1962 |
| details |
Late Pennsylvanian |
|
West Virginia |
Clendening,J.A. et al. Characteristic small spores of the Pittsburgh Coal in West Virginia and Pennsylvania. |
1964 |
| details |
Late Pennsylvanian |
|
Pennsylvania |
Clendening,J.A. et al. Characteristic small spores of the Pittsburgh Coal in West Virginia and Pennsylvania. |
1964 |
| details |
Late Pennsylvanian |
|
Pennsylvania |
Clendening,J.A. et al. Characteristic small spores of the Pittsburgh Coal in West Virginia and Pennsylvania. |
1964 |
| details |
Late Pennsylvanian |
|
West Virginia |
Clendening,J.A. et al. Characteristic small spores of the Pittsburgh Coal in West Virginia and Pennsylvania. |
1964 |
| details |
Pennsylvanian |
|
West Virginia |
Clendening,J.A. et al. Paleobotany in West Virginia |
1963 |
| details |
Early Osagean |
|
Kentucky |
Coleman,U. et al. Palynostratigraphy and palynofacies of the Uppermost Devonian and Lower Mississippian of eastern Kentucky, (USA), and correlation with Western Europe |
1987 |
| details |
Early Emsian |
|
Scotland(Caithness) |
Collins,A.G. et al. The age of two Old Red Sandstone sequences in southern Caithness. |
1977 |
| details |
Late Emsian |
|
Scotland(Caithness) |
Collins,A.G. et al. The age of two Old Red Sandstone sequences in southern Caithness. |
1977 |
| details |
Lochkovian |
|
Canada(Arctic) |
Copeland,M.J. et al. Appendix 5; Paleontology; C. Identification of ostracodes and spores. (In: Pre-Carboniferous geology of the northern part of the Arctic Island. Northern Heiberg Fold Belt, Clements Markham Fold Belt, and Peary; Northern Axel Heiberg and Ellesmere Islands. H.P.Trettin) |
1998 |