| original |
Middle Pennsylvanian |
|
Illinois |
Kosanke,R.M. Pennsylvanian spores of Illinois and their use in correlation. |
1950 |
| details |
Nd |
|
Nd |
Alpern,B. Contribution to the palynological and petrographic study of French Coals. |
1959 |
| original |
Stephanian B |
|
France |
Alpern,B. et al. Stratigraphic distribution of some microspores of the Upper Carboniferous of France. |
1960 |
| details |
Visean |
Westphalian B |
Illinois |
Alpern,B. et al. Provisional report of CIMP Group No.2 on Densosporites, (Berry), emended |
1962 |
| details |
Namurian A |
|
Scotland(Fife) |
Butterworth,M.A. et al. Densosporites Berry 1937 and related genera. |
1963 |
| details |
Desmoinesian |
|
Oklahoma |
Bordeau,K.V. Palynology of the Drywood Coal (Pennsylvanian) of Oklahoma. |
1964 |
| details |
Namurian A |
|
Scotland |
Butterworth,M.A. Densosporites (Berry) Potonie and Kremp, and related genera. Report of CIMP Working Group No.2 |
1964 |
| details |
Pennsylvanian |
|
Oklahoma |
Urban,L.L. Palynology of the Drywood and Bluejacket Coals (Pennsylvanian) of Oklahoma. |
1965 |
| details |
Middle Pennsylvanian |
|
Oklahoma |
Dolly,E.D. Palynology of the Bevier Coal (Pennsylvanian ) of Oklahoma. |
1965 |
| details |
Namurian |
|
Scotland |
Butterworth,M.A. The distribution of Densospores. |
1966 |
| details |
Visean |
|
England |
Butterworth,M.A. The distribution of Densospores. |
1966 |
| details |
Namurian |
|
Spain |
Butterworth,M.A. The distribution of Densospores. |
1966 |
| details |
Allegheny |
|
Ohio |
Gray,L.R. Palynology of four Allegheny Coals, northern Appalachian Coal Field. |
1967 |
| details |
Early Liassic |
|
Luxembourg |
Hiltmann,W. On the spore-guides of the core profile of the borehole Contern Fg 11 |
1967 |
| details |
Visean |
Namurian |
United Kingdom |
Smith,A.H.V. et al. Miospores in the coal seams of the Carboniferous of Great Britain. |
1967 |
| details |
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 |
| details |
Westphalian C |
|
Spain |
Moore,L.R. et al. The stratigraphy of Namurian and Westphalian rocks in the Villamanin area of northern Leon, northwest Spain. |
1971 |