1. Some Jurassic ammonites from central Saudi Arabia Author/Creator: Imlay, Ralph W. 1908-1989, (Ralph Willard), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1970 Resource Type: Book Access & Availability: Loading
2. The Mesozoic pelecypods Otapiria Marwick and Lupherella Imlay, new genus, in the United States Author/Creator: Imlay, Ralph W. 1908-1989, (Ralph Willard), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1967 Resource Type: Book Access & Availability: Loading
3. Marine Jurassic pelecypods from central and southern Utah Author/Creator: Imlay, Ralph W. 1908-1989, (Ralph Willard), author Publication/Creation: Washington : U.S. Department of the Interior, Geological Survey, 1964 Resource Type: Book Access & Availability: Loading
4. Upper Jurassic mollusks from eastern Oregon and western Idaho Author/Creator: Imlay, Ralph W. 1908-1989, (Ralph Willard), author Publication/Creation: Washington : U.S. Department of the Interior, Geological Survey, 1964 Resource Type: Book Access & Availability: Loading