| details |
Middle Pennsylvanian |
|
Iowa |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |
| details |
Early Permian |
|
China(Kansu) |
Du,B.-A. Sporo-pollen assemblage from Sansi Formation of Pingliang, Gansu and its geological age. |
1986 |
| details |
Late Atokan |
|
New Mexico |
Kosanke,R.M. et al. Palynological analyses of several Pennsylvanian coal beds from Santa Fe, New Mexico. |
1986 |
| details |
Westphalian C |
|
England(Staffordshire) |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |
| details |
Namurian A |
|
China(Kansu) |
Gao,L. Namurian miospore zonation from Jingyuan, Gansu and the Middle Carboniferous boundary. |
1987 |
| details |
Middle Pennsylvanian |
|
West Virginia |
Kosanke,R.M. Palynological studies of Middle Pennsylvanian Coal Beds of the proposed Pennsylvania system stratotype in West Virginia |
1988 |
| details |
Middle Pennsylvanian |
|
West Virginia |
Kosanke,R.M. Palynological studies of Middle Pennsylvanian Coal Beds of the proposed Pennsylvania system stratotype in West Virginia |
1988 |
| details |
Stephanian |
|
Kentucky |
Helfrich,C.T. et al. Palynologic and petrographic variation in the Otter Creek Coal Beds, (Stephanian, Upper Carboniferous), Western Kentucky. |
1989 |
| details |
Carboniferous |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Middle Westphalian D |
|
Kentucky |
Hower,J.C. et al. Petrology and palynology of the No.5 Block Coal Bed, Northeastern Kentucky |
1994 |
| details |
Late Westphalian A |
|
Kentucky |
Eble,C.F. et al. Palynologic, petrographic and geochemical characteristics of the Manchester Coal Bed in eastern Kentucky. |
1995 |
| details |
Late Moscovian |
|
USSR(Kazakh SSR) |
Podgainaya,N.N. et al. Assemblages of Middle and Upper Carboniferous Zonal miospores from the south-western Precaspian Depression, Russia |
1996 |
| details |
Westphalian A |
|
Virginia |
Eble,C.F. Lower and Lower Middle Pennsylvanian coal palynofloras, southwestern Virginia. |
1996 |
| details |
Duckmantian |
|
Kentucky |
Greb,S.F. et al. An Insitu occurrence of coal balls in the Amburgy Coal Bed, Pikeville Formation (Duckmantian), Central Appalachian Basin, USA. |
1999 |
| details |
Westphalian A |
|
Poland |
Nowak,G.J. et al. Peat-forming environments of Westphalian A coal seams from the Lower Silesian Coal Basin of SW Poland based on petrographic and palynologic data. |
1999 |