| details |
Carboniferous |
|
West Virginia |
Clendening,J.A. et al. Characteristic small spores of the Pittsburgh Coal in West Virginia and Pennsylvania |
1963 |
| details |
Carboniferous |
Permian |
Finland |
Suomalainen,T. et al. Pre-Quaternary microfossils in Clay occurrences of Kaljala on the Karelian Isthmus. |
1970 |
| details |
Carboniferous |
|
Romania |
Givulescu,R. Fossil flora of Roumania. Second Supplement, Second Part. |
1974 |
| details |
Carboniferous |
Triassic |
China(Sinkiang Uighur) |
Jiang,D.-X. Fossil pollen and spores in crude oil from an Igne Resevoir. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Allegheny |
|
Ohio |
Gray,L.R. Palynology of the Middle Kittanning Coal in Ohio |
1966 |
| details |
Allegheny |
|
Pennsylvania |
Gray,L.R. Palynology of the Middle Kittanning Coal in Ohio |
1966 |
| details |
Allegheny |
|
Ohio |
Gray,L.R. Palynology of four Allegheny Coals, northern Appalachian Coal Field. |
1967 |
| details |
Allegheny |
|
Pennsylvania |
Frederiksen,N.O. Sporomorphs of the Brookville Seam near Brookville, Pennsylvania. |
1961 |
| details |
|
|
Spain |
Luque,C. et al. Characteristic sedimentology and paleontology of productive formations the La Inverniza-El Cabo Cross section (Central Asturian Coalfields) |
1985 |