1. An early Reticuloceras Zone fauna from the Hale Formation in northwestern Arkansas Author/Creator: Gordon, Mackenzie, 1913- author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1968 Resource Type: Book Access & Availability: Loading
2. Economic geology of Richmond, Virginia, and vicinity Author/Creator: Darton, Nelson Horatio, 1865-1948, author Publication/Creation: Washington, D.C. : Department of the Interior, United States Geological Survey, 1911 Resource Type: Book Access & Availability: Loading
3. Economic geology of Richmond, Virginia, and vicinity Author/Creator: Darton, Nelson Horatio, 1865-1948 Publication/Creation: Washington : G.P.O., 1911 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 480-484. Access & Availability: Loading
4. Exotic terrane Publication/Creation: Oley, PA : Bullfrog Films, [2007?] Resource Type: Video or Visual Material Access & Availability: Loading
5. Exotic terrane Publication/Creation: [Oley, Pennsylvania] : [Distributed by] Bullfrog Films, [2016] Resource Type: Video or Visual Material Access & Availability: Loading