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
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 / by Robert M. Kosanke
Series Titles:
U.S. Geological Survey professional paper ; 1486 U.S. Geological Survey professional paper ; 1486.