CORRELATION of the UPPER CRETACEOUS STRATA of WYOMING Stratigraphic Chart Director and State Geologist Upper Cretaceous Laramie, Wyoming by Ranie M
WYOMING STATE GEOLOGICAL SURVEY Open File Report 2017-3 Thomas A. Drean CORRELATION OF THE UPPER CRETACEOUS STRATA OF WYOMING Stratigraphic Chart Director and State Geologist Upper Cretaceous Laramie, Wyoming by Ranie M. Lynds and Joshua S. Slattery Wyoming Interpreting the past, providing for the future 2017 Western Hanna Laramie Bighorn Denver Greater Green River Basin Wind River Basin Powder River Basin Wyoming Basin Basin Basin Basin A B C D E F G H I J K L M N O P Q R S T U V W X Y Age Period Epoch Stage and Stage Polarity U.S. Western Interior U.S. Western Interior U.S. Western Interior North American U.S. Western Interior Southern Jackson Northwestern Southern Eastern Eastern Atlantic Rocky Point Separation Lost Soldier Tully Rawlins Hanna Laramie Western Southern and Eastern Bighorn Northwestern Salt Creek Southwestern Southeastern Central Northwestern Denver (Ma) Boundary Chron Radiometric Ammonite Inoceramid Land Vertebrate Palynostratigraphic Thrust Belt Hole and Rock Springs Rock Springs Rock Springs Washakie Rim Rim Ranch Draw Basin Basin, Wind River Central Wind Wind River Basin Powder Powder Powder River Black Hills Black Hills Basin (Ma) Age (Ma) Biozone Biozone Age Biozone Hoback Basin Uplift Uplift Uplift Basin Rock River Basin River Basin Basin River Basin River Basin Basin (7, 56, 77) (7, 56, 74) (8, 49, 54, 55, 56, 69, 72) (7, 23, 25, 56, 74) (7, 56, 74) (2, 33, 35, 77) (50) (6, 10, 29, 30, 47, 53, (6, 11, 12, 22, 32, 37, (12, 26, 30, 64, 72, (12, 26, 30, 36, 63, 64, (12, 19, 20, 26, 29, 30, (1, 12, 21, 30, 36, 58,
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