original |
Desmoinesian |
|
Illinois |
Peppers,R.A. Correlation and palynology of coals in the Carbondale and Spoon Formations (Pennsylvanian) of the northeastern part of the Illinois Basin. |
1970 |
original |
Middle Triassic |
Late Triassic |
Argentina(Mendoza) |
Yrigoyen,M.R. et al. Palynology as an element of correlation of the Triassic of the Cuyo Basin. |
1969 |
original |
Allegheny |
|
Ohio |
Gray,L.R. Palynology of four Allegheny Coals, northern Appalachian Coal Field. |
1967 |
original |
Early Devonian |
|
Romania |
Beju,D. Some spores, acritarchs and chitinozoans of Lower Devonian age of the Moesian Platform (Rumania) |
1967 |
original |
Conemaugh |
Monongahela |
Illinois |
Peppers,R.A. Spores in strata of Late Pennsylvanian cyclothems in the Illinois Basin. |
1964 |
original |
Chesterian |
|
Oklahoma |
Wiggins,V.D. Palynomorph fossils from the Goddard Formation (Mississippian) of Southern Oklahoma |
1962 |
original |
Namurian |
|
Romania |
Venkatachala,B.S. et al. Microfloristic studies on the Paleozoic of the Moesian Platform. On the presence of the Carboniferous formation in the foundation of the Calareti zone. |
1962 |
original |
Late Pennsylvanian |
|
Illinois |
Peppers,R.A. Palynology of the McLeansboro Group of Illinois and equivalent strata of Western Kentucky |
1961 |
original |
Late Pennsylvanian |
|
Kentucky |
Peppers,R.A. Palynology of the McLeansboro Group of Illinois and equivalent strata of Western Kentucky |
1961 |
original |
Early Carboniferous |
|
Egypt |
Dijkstra,S.J. Lower Carboniferous megaspores. |
1956 |
original |
Early Permian |
|
Brazil(Rio Grande Sul) |
Dijkstra,S.J. Some Brazilian megaspores, Lower Permian in age, and their comparison with Lower Gondwana spores from India. |
1955 |
original |
Westphalian B |
|
Canada(Nova Scotia) |
Nicholeris,N. A plant microfossil investigation of three Nova Scotian Coal Seams |
1951 |
original |
Westphalian B |
|
Canada(Nova Scotia) |
Malloy,R.E. Carboniferous plant spores of the No.40 Brine Seam, Joggins, Nova Scotia. |
1951 |