Palynological analyses of Upper Pennsylvanian coal beds and adjacent strata from the proposed Pennsylvanian system stratotype in West Virginia : a report on the stratigraphic distribution and abundance of Upper Pennsylvanian palynomorphs /
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| Format: | Government Document Book |
| Language: | English |
| Published: |
[Reston, Va.] :
Dept. of the Interior, U.S. Geological Survey ;
1988 [i.e. 1989]
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| Series: | U.S. Geological Survey professional paper ;
1486. |
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