CHARACTERISTIC MARINE MOLLUSCAN FOSSILS FROM THE DAKOTA SANDSTONE AND INTERTONGUED MONCOS SHALE, WEST-CENTRAL NEW MEXICO; GEOLOGICAL SURVEY PROFESSIONAL PAPER 1009
Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1977. Soft cover. Brief descriptions, illustrations, and stratigraphic sequence of the more common fossils at the base of the Cretaceous System. 27 pages with maps, tables, section charts and references, plus 21 plates bound in the rear. Bound in thick tan paper..... More