| details |
Early Stephanian |
|
France(Jura) |
Navale,G.K.B. Miospore assemblage pattern in the Microlithotypes of Jura Coals. |
1964 |
| original |
Middle Pennsylvanian |
|
Illinois |
Kosanke,R.M. Pennsylvanian spores of Illinois and their use in correlation. |
1950 |
| details |
Westphalian |
|
W.Germany(N.Rhine) |
Mittapalli,R. Comparative sporological and petrographic examinations of the Zollverein Beds 1-5 of the Brassert, Auguste Victoria and Schlagel and Eisenmines |
1966 |
| details |
Desmoinesian |
|
Oklahoma |
Bordeau,K.V. Palynology of the Drywood Coal (Pennsylvanian) of Oklahoma. |
1964 |
| details |
Pennsylvanian |
|
Oklahoma |
Ruffin,J.H. Palynology of the Tebo Coal (Pennsylvanian) of Oklahoma |
1961 |
| details |
Middle Pennsylvanian |
|
Oklahoma |
Higgins,M.J. Stratigraphic position of the Coal Seam near Porter, Wagoner County, Oklahoma. |
1961 |
| details |
Allegheny |
|
Pennsylvania |
Frederiksen,N.O. Sporomorphs of the Brookville Seam near Brookville, Pennsylvania. |
1961 |
| details |
Desmoinesian |
|
Oklahoma |
Davis,P.N. Palynology of the Rowe Coal (Pennsylvanian) of Oklahoma |
1961 |