USGS Denver Mesozoic Catalog for 14595 fossil localities from the Rocky Mountain Region (1933-2017)
Collection consist of Western Interior Upper Cretaceous ammonites and Inoceramids featuring stratigraphic and spatial data. Data is primarily type fossils from the USGS Denver Mesozoic Invertebrate Catalog created and maintained by U.S. Geological Survey (USGS). Data was collected by paleontologist William A. Cobban …