Articles

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  Fallout tuffs in the Eocene Duchesne River Formation, northeastern Utah—ages, compositions, and likely source

  Michael S. Jensen, Bart J. Kowallis, Eric H Christiansen, Casey A. Webb, Michael J. Dorais, Douglas A. Sprinkel, Brian Jicha

  1-27

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  An unusually diverse northern biota from the Morrison Formation (Upper Jurassic), Black Hills, Wyoming

  John R. Foster, Darrin C. Pagnac, ReBecca K. Hunt-Foster

  29-67

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  Rhyolite ignimbrite boulders and cobbles in the Middle Jurassic Carmel Formation of Utah and Arizona—age, composition, transport, and stratigraphic setting

  Bart J. Kowallis, Douglas Sprinkel, Eric H Christiansen, Skylor M. Steed, David F. Wheatley

  69-96

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  Hydraulic modeling and computational fluid dynamics of bone burial in a sandy river channel

  Kenneth Carpenter

  97-120

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  Methane emissions from muds during low water-level stages of Lake Powell, southern Utah, USA

  Margariete Malenda, Thomas A. Betts, Wendy S. Simpson, Michael C. Wizevich, Edward Simpson, Laura Sherrod

  121-136

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  The Morrison Formation and its bounding strata on the western side of the Blanding basin, San Juan County, Utah

  James I. Kirkland, Donald D. DeBlieux, ReBecca K. Hunt-Foster, John R. Foster, Kelli Trujillo, Emily Finzel

  137-195

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  High-quality casts of the missing holotype of Petalodus ohioensis Safford 1853 (Chondrichthyes, Petalodontidae) at the Field Museum of Natural History and their bearing on the validity and priority of the species

  Wayne M. Itano, Kenneth Carpenter

  197-203

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  Paleontology of Bears Ears National Monument (Utah, USA) History of exploration, study, and designation

  Robert J. Gay, Adam K. Huttenlocker, Randall B. Irmis, M. Allison Stegner, Jessica Uglesich

  205-241

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  A tale of two breccia types in the Mississippian Leadville Limestone of Lisbon and other fields, Paradox Basin, southeastern Utah

  Thomas C. Chidsey, Jr., David Eby, Douglas A. Sprinkel

  243-280

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  New social insect nests from the Upper Jurassic Morrison Formation of Utah

  Elliott Armour Smith, Mark A. Loewen, James I. Kirkland

  281-299

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  G.K. Gilbert and the Bonneville shoreline

  Charles G. Oviatt

  300-320

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