Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1971. Softcover. Item #46765
A fauna of Middle Pennsylvanian age showing similarities with faunas from Japan and central British Columbia, Canada. 21 pages with maps, tables, graphs, references and index, plus the seven plates bound in the rear. Bound in original stiff gray paper printed in black. Tiny edge tear to the front cover. A near fine copy.