Yochelson, Ellis L.

BIOSTRATIGRAPHY OF THE PHOSPHORIA, PARK CITY, AND SHEDHORN FORMATIONS; GEOLOGY OF PERMIAN ROCKS IN THE WESTERN PHOSPHATE FIELD: PROFESSIONAL PAPER 313-D

Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1968. Soft cover. Near Fine. Item #44196

Distribution of megafossils in more than 1,500 collections, mainly from measured sections, and their paleoecological interpretation. Pages 571 through 660 with tables, graphs, index and references. Bound in original gray stiff paper covers printed in black. Small name stamp on the front cover. A near fine copy.

Price: $25.00