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CORRELATION of the UPPER CRETACEOUS STRATA of WYOMING Stratigraphic Chart Director and State Geologist Upper Cretaceous Laramie, Wyoming by Ranie M

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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, (1, 12, 30, 36, 39, 58, (1, 12, 30, 36, 58, 74) (1, 12, 30, 36, 58, 64, (6, 12, 30, 36, 41, 58, (1, 12, 30, 36, 58, 74) (1, 12, 30, 36, 58, 74) (5, 12, 15, 17, 20, 57, (6, 12, 19, 20, 46, 74, (12, 13, 59, 74) (12, 13, 59, 74) (9, 12, 13, 14, 19, 59, (12, 17, 24, 28, 40, 43, (12, 40, 52, 59, 74) (3, 12, 17, 51, 59, 74) (12, 40, 52, 59, 68, 74) (12, 16, 17, 18, 40, 44, (4, 12, 52, 59, 61, 74) (4, 12, 42, 46, 52, 59, (12, 27, 31, 48, 70, 73, 65, 66, 67, 72, 75, 76) 47, 67, 74) 74) 72, 74) 36, 62, 63, 67, 74) 64, 74) 74) 74) 59, 60, 74) 74, 78) 78) 74) 52, 59, 74) 45, 46, 52, 59, 74) 61, 74) 74) Lebo Lebo Lebo Lebo Lebo Torrejonian main body upper C28n P3 (part) China China China China China China China China China Member Member Member Member Member Fort Union (part) lower lower lower (part) (part) (part) (part) (part) Formation Butte Butte Butte Butte Butte Butte Butte Butte Butte Member Member Member Member Member Member Member member member member Fort Union Fort Union No Record (part) Member Member No Record (part) (part) (part) (part) (part) (part) (part) (part) (part) (part) (part) Formation Formation (part) (part) (part) (part) (part) (part) C28r Danian aleocene aleogene P2 65 middle P P Puercan Tullock Tullock Tullock Tullock Tullock Fort Union Formation Fort Union Formation Fort Union Formation Fort Union Formation Fort Union Formation Fort Union Formation Fort Union Formation Fort Union Formation Fort Union Formation Fort Union Formation Fort Union Formation C29n Fort Union Formation Member Member Member Member Member Fort Union Formation Fort Union Formation Fort Union Formation Fort Union Formation Fort Union Formation P1 Pinyon Ferris Formation Conglomerate 66.0 ± 0.5 C29r 66.02 ± 0.08 Red Rim Red Rim Red Rim Red Rim Red Rim Red Rim Red Rim lower Unzoned Member Member Member Member Member (?) Member (?) Member (?) C30n Torrington Wodehouseia spinata Lance Lance Lance Formation Formation Member Hoploscaphites Assemblage Biozone Lance upper Unzoned Lancian Formation Formation Lance Lance Lance nebrascensis Medicine Bow Lance Formation Formation Formation C30r lower lower lower lower lower Medicine Bow Formation Formation Lance Formation member member lower lower Lance Lance Lance Formation member member member Lance Formation Formation Lance Formation Lance Formation Lance Formation member member Formation Formation Lance Formation C31n Lance Formation Hoploscaphites nicolletii Fox Hills Sandstone Bobcat Lance Fox Hills Fox Hills Hoploscaphites birkelundae Member Formation Fox Hills Sandstone Sandstone Evanston Formation (part) Sandstone Meeteetse undifferentiated Maastrichtian Fox Hills Ss Fox Hills Ss Formation 70 70.08 ± 0.37 Fox Hills Ss Fox Hills Ss Fox Hills Ss Fox Hills Ss Fox Hills Baculites clinolobatus “Inoceramus" balchii Fox Hills Ss upper part upper part upper part Fox Hills Ss Unit C C31r upper part upper part upper part Fox Hills Fox Hills upper part Sandstone Fox Hills Sandstone Sandstone Lewis Shale 70.66 ± 0.66 Dad Sandstone Dad Bearpaw Shale Sandstone Baculites grandis Trochoceramus radiosus Member Dad Sandstone Dad Sandstone Dad Sandstone Sandstone Member Member Member Mbr Dad Ss Mbr upper Unit B lower Harebell Formation Whetstone Lewis Shale Lewis Shale Lewis Shale sandstone Hams Fork Falls sandstone shale Fox Hills Conglomerate mbr member Sandstone "Inoceramus" incurvus Mancicorpus striatus Member Meeteetse Meeteetse Baculites baculus Member lower part Lewis Interval Biozone lower part Meeteetse Meeteetse Formation Formation Lewis Unit A Endocostea typica Lewis Shale lower part lower part lower part Shale Lewis Shale Lewis Shale Lewis Shale Lewis Shale Formation Formation Lewis Shale lower part 72.1 ± 0.2 Shale Lewis Shale Kara Bentonitic Kara Bentonitic Baculites eliasi "Inoceramus" redbirdensis Edmontonian Almond Almond Tekla Sand Mbr shale C32n 72.50 ± 0.31 lower part Lewis Member Member Formation Formation Shale Almond Almond Almond Almond Richard Ss Mbr Baculites jenseni Almond Almond Lewis Shale "Inoceramus" oblongus Formation Formation Formation Formation Formation Formation shale shale shale Rocky Ridge and Bearpaw Larimer ss mbrs 73.41 ± 0.47 Baculites reesidei Canyon Canyon Creek Mbr Creek Mbr Pine Ridge Ss Pine Ridge Ss Pine Ridge Ss Pine Ridge Ss Pine Ridge Ss Teapot Ss Mbr Teapot Ss Mbr Teapot Ss Mbr Shale Teapot Ss Mbr Teapot Ss Mbr Baculites cuneatus lower mbr Pine Ridge Ss Pine Ridge Ss Pine Ridge Ss Teapot Ss Mbr 74.05 ± 0.39 Baculites compressus "Inoceramus" altus upper shale C32r Didymoceras cheyennense Monument Hill shale Meeteetse Bentonitic Mbr Exiteloceras jenneyi Formation 75 74.85 ± 0.43 Sphaeroceramus Didymoceras stevensoni pertenuiformis sandstone marine shale member shale lower shale member shale shale Didymoceras nebrascense marine mbr member Pierre Shale shale Rusty Aquilapollenites Rusty zone Rusty zone zone undifferentiated 76.62 ± 0.51 quadrilobus Ericson Sandstone shale Baculites scotti Interval Biozone Rock River middle Ericson Sandstone Hygiene Mesaverde Group member Trail Trail Allen Allen Allen Formation member Pierre Shale "Inoceramus" tenuilineatus Mesaverde Sandstone Member Member Ridge Ridge Allen Ridge nonmarine Mesaverde Formation Member Baculites reduncus Formation Mesaverde Formation Red Bird Red Bird Red Bird Judithian Ericson Ss Formation Formation Mesaverde Group Mesaverde Group Trail Formation Mesaverde Group Parkman member C33n Ridge Allen Mesaverde Group Member Allen Sandstone Parkman Silty Silty Silty Mesaverde Formation Mesaverde Group Formation Ridge Member Member Member Mesaverde Group Ridge Mesaverde Group Member Sandstone Mesaverde Group Pierre Shale Baculites gregoryensis Formation Mesaverde Fm Parkman Member Mesaverde Group Formation middle Parkman Ss Sandstone ampanian Member Pierre Shale middle sandstone member Mesaverde Formation Member C Mesaverde Formation Mitten Mitten Baculites perplexus undifferentiated upper Wallace Creek Mitten sandstone shale Tongue Cody Sh shale lower member Mitten Member Member Black Shale shale sandstone Mesaverde Formation Cataceramus sandstone shale member, upper Member sandstone Haystack Member shale Hatfield Fales Ss part Baculites sp. (smooth) subcompressus Sandstone shale Haystack Hatfield Ss Hatfield Mountains Member Member Claggett shale Member Sandstone Formation Mountains Member shale Aquilapolenites Hatfield Ss Mbr Member Hatfield Ss Mbr Baculites asperiformis Gottsche Formation middle shale Sharon Springs senonicus Rock Espy Tongue, Espy Tongue, Espy Tongue, middle “Stray sandstone” Member 80 80.10 ± 0.61 tongue Steele Shale Seminoe Mbr Steele Shale Steele Shale equivalent? sandstone Mesaverde Group member member shale Haystack Mtns Fm Haystack Mtns Fm Baculites mclearni Haystack Mtns Fm Interval Biozone Springs McCourt Tongue Deep Creek Ss Mbr Deep Creek Ss Mbr Deep Creek Ss Mbr Judith Ardmore Ardmore Sharon Springs "Inoceramus" McCourt Tongue O’Brien Spring Ss Mbr Bentonite Bentonite Baculites obtusus Formation O’Brien Spring Mbr shale River Sussex Member Coulson Tongue 80.62 ± 0.40 Haystack Mtns Fm azerbaydjanensis lower sandstone Bentonite Sandstone Member Brooks Tongue Bolten Ranch Mbr ss beds “Conant Creek Sussex Ss Mbr Gammon Baculites sp. (weak flank ribs) Black Butte Tongue Cow Creek Ss Mbr member shale shale Brooks Tongue Tapers Ranch Mbr Haystack Mountains Fm Steele tongue,” shale shale Ferruginous Mbr Minnies Gap Tongue Tapers Ranch Ss Mbr lower shale Shannon Ss Mbr shale Baculites sp. (smooth) shale Cody Shale sandstone Rock Springs Fm Rock Springs Fm Shale Shannon Ss Mbr Chimney Rock Tongue shale part Groat Ss Bed Groat Ss Bed sandstone shale Scaphites hippocrepis III shaley shaley “Alkali Butte Mbr” Gammon member 81.71 ± 0.51 member Blair Steele Shale Member Member C33r 81.84 ± 0.22 Cataceramus balticus Aquilan Cody “Fishtooth Scaphites hippocrepis II basal basal Formation Steele Steele Steele Cody basal ss mbr sandstone” shale lower Pseudoplicapolis Sohare sandstones Shale Cody upper shale shale Blair Fm Adaville Blair Fm sandstones Shale Shale
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