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USGS Denver Mesozoic Catalog for 14595 fossil localities from the Rocky Mountain Region (1933-2017)

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2020-08-18T00:00:00Z
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 during his sixty years of service within the USGS Paleontology And Stratigraphy Branch and Geologic Mapping Team. His catalogs were converted into digital form, Excel and Filemaker Pro database. The Catalog is 14595 fossil localities. His supplementary data has been added whenever possible - sources field map locality points, E&R files with enhanced faunal lists, as well as formal publications

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