1. Correlation of middle Jurassic San Rafael group and related rocks from Bridgeport to Ouray in western Colorado Author/Creator: O'Sullivan, Robert Brett, 1923- Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2004 Format: Map Edition: Version 1.0. Access & Availability: Loading
2. The Jurassic Wanakah and Morrison formations in the Telluride-Ouray-western Black Canyon area of southern Colorado : revision of the Wanakah Formation and basal Morrison Formation in part of the Black Canyon of the Gunnison River Author/Creator: O'Sullivan, Robert Brett, 1923- Publication/Creation: Washington : U.S. G.P.O. ; Denver, CO : For sale by the Book and Open-File Report Sales, U.S. Geological Survey, 1992 Format: Book Access & Availability: Loading
3. The base of the Upper Jurassic Morrison Formation in east-central Utah : a review of the first description of the base of the Morrison Formation in east-central Utah and some later modifications Author/Creator: O'Sullivan, Robert Brett, 1923- Publication/Creation: Washington, D.C. : U.S. G.P.O. ; Alexandria, VA : For sale by the Branch Distribution, U.S. Geological Survey, 1985 Format: Book Is Part Of: U.S. Geological Survey bulletin, no. 1560-1564. Access & Availability: Loading
4. Marine trace fossils in the Upper Jurassic Bluff Sandstone, southeastern Utah : a description of newly discovered trace fossils and their significance Author/Creator: O'Sullivan, Robert Brett, 1923- Publication/Creation: Washington : U.S. Govt. Print. Off, 1975 Format: Book Access & Availability: Loading
5. Geology of the Cedar Mesa-Boundary Butte area, San Juan County, Utah Author/Creator: O'Sullivan, Robert Brett, 1923- Publication/Creation: Washington : U.S. Govt. Print. Off, 1965 Format: Book Is Part Of: U.S. Geological Survey bulletin, no. 1186-1188. Access & Availability: Loading