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Composite Biostratigraphic Outcrop Sections for Cretaceous Formations

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Composite Biostratigraphic Outcrop Sections for Cretaceous Formations U.S. Department of the Interior Open-File Report 2015–1087 U.S. Geological Survey Pamphlet accompanies map MONTANA WYOMING WYOMING UTAH 116° 110° 104° Table 1. Section number, geographic area, cadastral locations, nearby locality, and principal sources of data. 135 miles 108 miles 114 miles 136 miles EXPLANATION A Section Geographic area Principal sources of data 49° CANADA A' 72 miles Cadastral location(s) Nearby locality number UNITED STATES 6 A Conglomerate or breccia Disconformity—In strata 1 East Glacier Park 102 miles Cumberland Gap area—Lincoln County, Wyo. 1 Southeastern Glacier National Park and adjacent areas, Mont. T. 29–32 N., R. 11–13 W. East Glacier Park Rice and Cobban, 1977 Disconformity—In stratigraphic nomenclature Sandstone * * * * 5 Paleocene 2 Drummond area, Mont. T. 10–11 N., R. 10–13 W. Drummond Gwinn, 1961and 1965 Tentative correlation of disconformities MONTANA Sandstone with shale partings Northern Jackson Hole—Teton County, Wyo. Fort Union Formation 3 Pioneer Mountains, Lima Peaks, Tendoy Mountains, Mont. T. 4–15 S., R. 8–14 W. Lima Dyman, Porter, and others, 1995 2 Drummond Stage boundary—In column for stages; queried where approximate FEET 4 Cinnabar Mountain area, Mont. T. 8 S., R. 7 E. Gardiner Tysdal and others, 1990; Fraser and others, 1969 Sandstone, calcareous Late Cretaceous and Paleocene 0 Correlation of stage boundaries 2 * * * 88 miles 5 Northern Jackson Hole, Wyo. T. 42–45 N., R. 112–114 W. Jackson Love and others, 1948; Love, 1956 4 Nonmarine strata Pinyon Conglomerate 3 Gardiner Siltstone Drummond area—Granite and Powell Counties, Mont. Lima FEET 6 Cumberland Gap area, Wyo. T. 19–20 N., R. 116–117 W. Kemmerer Cobban and Reeside, 1952; Merewether and others, 1984 45° 0 Oligocene clays * * * Shale Marine shale 7 Coalville area, Utah T. 2–3 N., R. 4–6 E. Coalville Ryer, 1977; Merewether and others, 1997 FEET 3 IDAHO Shale with sandstone lenses Marine calcareous shale 0 8 Price area, Utah T. 13–15 S., R. 8–10 E. Price Gardner and Cross, 1994; Anna, 2012 5 Jackson Ostrea Eastern Pioneer Mountains, Lima Peaks, 7 Inoceramus soleniscus 9 Northeastern Grand County, Utah T. 17–21 S., R. 17–24 E. Harley Dome Fouch and others, 1983; Anna, 2012 WYOMING Tendoy Mountains—Beaverhead County, Mont. 500 Shale, calcareous dimidius Fossil in strata and associated zones Coalville area—Summit County, Utah Zones 33, 34 10 Henrieville, Utah T. 37–38 S., R. 1–2 W. Henrieville Dyman and others, 2002; Titus and others, 2005 Scaphites Paleocene 6 Shale, carbonaceous hippocrepis? Lower Tertiary formations Fossil projected to strata and associated zones 11 Yale Point area, Black Mesa, Ariz. 36.5° N., 110° W. Kayenta Repenning and Page, 1956; Beaumont and Dixon, 1965 Zones 52–54 500 Kemmerer Fort Union Formation Anomia cf. Fort Union Formation Limestone Anemia micronema Fossil in strata, associated zones unknown FEET 12 Farmington area, New Mex. T. 27–30 N., R. 10–13 W. Farmington Molenaar and others, 2002 41° fremonti 0 FEET 7 500 * * * 0 NEVADA Coalville Maastrichtian * * * 13 Gallup area, New Mex. T. 16 N., R. 18 W. Gallup Molenaar and others, 1996 Limestone, shaley or sandy Collignoniceras Occurences of earliest middle Turonian fossils and woollgari associated zone that are are used as the datum 1,000 ? Price Zone 29 90 miles 8 9 Bentonite Lioplacodes sp. cf. L. tenuicarinata Tentative correlation of earliest middle Turonian ? Harley Dome UTAH COLORADO Coal fossils (zone 29) Thickness of 1,000 Evanston Maastrichtian sequence omitted Formation 75.02 Ma Tentative absolute age (Ma) 2,500 C Campanian 8 Concealed Thickness of 500 Ginkgo laramiensis * * * 1,000 500 Henrieville sequence omitted Price area—Carbon County, Utah 10 Golden Spike Formation 4,000 1,500 37° Adaville Formation Paleocene Farmington Harebell Formation Kayenta 11 Maastrichtian ARIZONA 12 Campanian North Horn Formation FEET NEW MEXICO UTAH ARIZONA SCALE 0 0 60 120 MILES Campanian 3,000 13 Gallup 0 60 120 KILOMETERS A' 1,000 1,000 ARIZONA NEW MEXICO 4,500 Figure 1. Map of selected Rocky Mountain States showing locations 2,000 of main outcrop-sections (part) Formation North Horn Maastrichtian * * * Maastrichtian * * * ? 500 192 miles (not to scale) 3,500 1,500 Thickness of ? * * * 1,500 5,000 3,500 sequence omitted 128 miles 2,500 9 Northeastern Grand County, Utah Formation Price River Santonian 122 miles Paleocene 1,000 4,000 North Horn Formation 78 miles Lazeart FEET 1 Sandstone * * * 2,000 0 Member 10 Glacier National Park area—Glacier County, Mont. 5,500 4,000 Meeteetse Formation ? 3,000 Henrieville area—Garfield and Kane Counties, Utah Paleocene Paleocene 12 ? Farmington area—San Juan County, N. Mex. Willow Creek Formation 4 (part) Sandstone Castlegate Echo Canyon Conglomerate Formation Canaan Peak Formation (upper part) North Horn Formation 1,500 Mesaverde FEET Paleocene Cinnabar Mountain area—Park County, Mont. Maastrichtian FEET 4,500 * * * 0 Baculites reesidei? ? 0 Ojo Alamo Sandstone * * * * * * Paleocene Hinshaw 2,500 500 Zone 71 Member FEET UPPER CRETACEOUS 6,000 4,500 Fort Union Formation Campanian 3,500 74.21 Ma 0 FEET * * * 0 * * * Didymoceras cheyennense? Zone 68 Farmington Sandstone Maas- ? trichtian ? Member Campanian 2,000 5,000 Thickness of 500 6,500 sequence omitted 500 Formation Baculites thomi ? 3,000 Price River 1,000 Lenticular sandstone and shale sequence 6,500 Zone 50 Kirtland Shale 5,000 500 4,000 Formation Blackhawk lower shale member 500 ? Baculites Zone 69 Fruit- compressus ? 2,500 land Maastrichtian 1,000 Form- 1,000 Baculites clinolobatus? 7,000 ation Zone 77 3,500 * * * 1,500 7,000 Thickness Formation Santonian 5,500 Kaiparowits 1,000 4,500 of sequence 75.02 Ma Beaverhead Group 4,500 Scaphites hippocrepis? omitted Exiteloceras jenneyi? Zone 67 Didymoceras stevensoni ? Zone 66 Cliffs Campanian 1,000 Zones 52–54 Pictured St. Mary River and Willow Creek Formations, undivided Sandstone Didymoceras mortoni? Zones 64–69 ? Neslen Coaly sequence 75.02 Ma Clioscaphites vermiformis? Zone 47 Formation Star Point Sandstone 3,000 Horsethief Crassostrea wyomingensis Huerfanito Bentonite Bed 75.76 Ma Santonian part) Sandstone Shale Lewis Campanian (upper 1,500 1,500 Oxytoma nebrascana 7,500 Sego Didymoceras nebrascense ? Zone 65 Carten Creek Formation Baculites scotti? Zone 64 Upper part of Sandstone 2,000 Cliff House Ss. Baculites obtusus? Blue Gate Member (upper part) Baculites reesidei Zone 71 7,500 6,000 Zone 57 Landslide Creek Formation Menuites portlocki? Zones 62, 63 Baculites scotti? Zone 64 1,500 Shale Baculites cuneatus Zone 70 5,000 Baculites scotti ? Zone 64 Campanian Bearpaw Baculites compressus Zone 69 5,000 Buck Tongue 75.96 Ma 1,500 Clioscaphites Desmoscaphites bassleri? Baculites perplexus Zone 61 Shale UPPER CRETACEOUS Exiteloceras jenneyi? Zone 67 Santonian Zone 50 Baculites reduncus? Zone 63 Mancos Trapa microphylla vermiformis? part) ? Zone 47 Baculites thomi? (middle Lewis Shale Baculites 3,500 Zone 50 Castlegate Baculites asperiformis? Zone 59 perplexus ? Zone 61 Sandstone Campanian ? 2,000 2,000 8,000 Scaphites depressus? Zone 45 Henefer Formation Baculites maclearni Zone 58 Hilliard Shale Cliff House Baculites asper Zone 45 2,500 8,000 UPPER CRETACEOUS Sandstone 6,500 Campanian 5,500 Baculites obtusus Zone 57 (middle 2,000 Scaphites leei? Zone 51 5,500 part) ? Baculites sp. (weak flank ribs) Zone 56 * * * 2,000 Inoceramus sp. Shurtliff UPPER CRETACEOUS Bacon Ridge Sandstone Member Scaphites ventricosus Zone 44 Baculites 4,000 Scaphites hippocrepis? Zones 52–54 Coniacian asperiformis ? Zone 59 part) Shale Lewis (lower 2,500 8,500 C Emery 2,500 Desmoscaphites bassleri ? Zone 50 oysters and pelecypods 3,000 Cliff House Ss. 8,500 Sandstone (lower part) 7,000 Member 6,000 Cremnoceramus deformis Prairie Canyon 2,500 6,000 Zones 39–42 Member Formation 2,500 UptonSandstone Wahweap Brachyceratops montanensis Member Crassatella andrewsi Baculites perplexus? Zone 61 Judd Shale Member 4,500 ? Two Medicine Formation Two 3,000 UPPER CRETACEOUS 3,000 UPPER CRETACEOUS 9,000 UPPER CRETACEOUS Everts Formation Clioscaphites vermiformis 3,500 9,000 Santonian Zone 47 7,500 6,500 3,000 6,500 Menefee Formation Santonian 3,000 ? Grass Creek Clioscaphites vermiformis? Member 5,000 Zone 47 ? Santonian Scaphites depressus? Zone 45 ? Mancos Shale 3,500 Drip Tank Member 3,500 9,500 Scaphites ventricosus Zone 44 Baculites 4,000 Point 9,500 Cardium pauperculum codyensis? UPPER CRETACEOUS 8,000 Thickness of Zones 44, 45 Lookout 3,500 Volviceramus involutus Zone 44 7,000 Cody Shale sequence omitted Coniacian 7,000 Cataceramus balticus? Zones 52–55 Sandstone 10,000 UPPER CRETACEOUS ? * * * 3,500 * * * Desmoscaphites erdmanni? Zone 49 Clioscaphites choteauensis? Zone 48 Inoceramus frechi Zone 44 Inoceramus lobatus Zones 49–52 Shale Haresiceras Mancos Virgelle Coniacian Scaphites ventricosus? Zone 44 mancosense? Zone 50 13 Zone 52 Eagle Sandstone 5,500 Scaphites hippocrepis I Cremnoceramus Santonian Clioscaphites 11 Santonian Sandstone Inoceramus deformis? deformis Gallup area—McKinley County, N. Mex. Scaphites leei III Zone 51 ? Clioscaphites choteauensis? Zone 48 4,000 vermiformis 4,000 Zones 39–42 10,000 Zones 39–42 Zone 47 Yale Point area, Black Mesa—Northeastern, Ariz. Telegraph Desmoscaphites bassleri Zone 50 4,500 Niobrara Formation Paleocene Scaphites leei II 10,000 Plesielliptio sp. Lower part of Creek Blue Gate Member equivalent Pliocene Formation Scaphites leei I ? 4,000 Clioscaphites vermiformis? Zone 47 7,500 ? Nacimiento Formation Desmoscaphites erdmanni Zone 49 10,500 7,500 Bidahochi Formation Clioscaphites FEET ? Santonian
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