1. The Chinle (Upper Triassic) and Sundance (Upper Jurassic) Formations in north-central Colorado Author/Creator: Pipiringos, G. N. 1918- (George Nicholas) Publication/Creation: Washington : U.S. Govt. Print. Off, 1969 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 1274. Access & Availability: Loading
2. The Chinle (Upper Triassic) and Sundance (Upper Jurassic) Formations in north-central Colorado : a description of hitherto unreported or little-understood stratigraphic and paleontologic details of marine Jurassic and Upper Triassic rocks of a scantily studied area Author/Creator: Pipiringos, G. N. 1918- (George Nicholas), author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1969 Resource Type: Book Access & Availability: Loading
3. Clay minerals in triassic rocks of the Colorado Plateau Author/Creator: Schultz, Leonard Gene, 1926- author Publication/Creation: Washington, D.C. : United States Department of the Interior, Geological Survey, 1963 Resource Type: Book Access & Availability: Loading
4. Correlation and nomenclature of some Triassic and Jurassic rocks in south-central Wyoming, Author/Creator: Pipiringos, G. N. 1918- (George Nicholas) Publication/Creation: Washington : U.S. Govt. Print. Off, 1968 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 594 A-M. Access & Availability: Loading
5. Correlation of Upper Triassic and Triassic (?) formations between southwestern Utah and southern Nevada Author/Creator: Wilson, Richard Fairfield, 1930-2011, author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1967 Resource Type: Book Access & Availability: Loading
6. Correlation of Upper Triassic and Triassic Formations between southwestern Utah and southern Nevada Author/Creator: Wilson, Richard Fairfield, 1930-2011 Publication/Creation: Washington : U.S. Govt. Print. Off, 1967 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no.1243-1244. Access & Availability: Loading
7. Correlation papers : the Newark system Author/Creator: Russell, Israel C. 1852-1906. (Israel Cook) Publication/Creation: Washington : Govt. Print. Off, 1892 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 84-86. Access & Availability: Loading
8. Correlation papers : the Newark system Author/Creator: Russell, Israel C. 1852-1906, (Israel Cook), author Publication/Creation: Washington, D.C. : Department of the Interior, United States Geological Survey, 1892 Resource Type: Book Access & Availability: Loading