11. Outcrops, fossils, geophysical logs, and tectonic interpretations of the upper Cretaceous Frontier Formation and contiguous strata in the Bighorn Basin, Wyoming and Montana Author/Creator: Merewether, E. A. 1930- (Edward Allen) Publication/Creation: Reston, Va. : U.S. Geological Survey, 2010 Resource Type: Book Access & Availability: Loading
12. Owl Creek (Upper Cretaceous) fossils from Crowleys Ridge, Southeastern Missouri Author/Creator: Stephenson, Lloyd William, 1876-1962, author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1955 Resource Type: Book Access & Availability: Loading
13. Owl Creek (Upper Cretaceous) fossils from Crowleys Ridge, Southeastern Missouri Author/Creator: Stephenson, Lloyd William, 1876-1962 Publication/Creation: Washington : U.S. Govt. Print. Off, 1955 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 274. Access & Availability: Loading