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Submissions from 2012

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Mapview and Cross Section Animations, Jason Luke

Submissions from 2009

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PetroMode, Eric H. Christiansen

Submissions from 2007

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Hikorocodium Endo is Not an Alga but an Inozoid Sponge, J. Keith Rigby and Baba Senowbari-Daryan

Submissions from 2006

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Contrasting Silicic Magma Series in Miocene-Pliocene Ash Deposits in the San Miguel de Allende Graben, Guanajuato, Mexico, Eric H. Christiansen, Bart J. Kowallis, Aaron J. Adams, Oscar Carranza-Castaneda, and Wade E. Miller

Submissions from 2005

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Geochronology of Hemphillian-Blancan Aged Strata, Guanajuato, Mexico, and Implications for Timing of the Great American Biotic Interchange, Bart J. Kowallis, John J. Flynn, Clarita Nunez, Oscar Carranza-Castaneda, Wade E. Miller, Carl C. Swisher III, and Everett Lindsay

Submissions from 2004

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An Unusually Large Aulocopella Winnipegensis and Associated Demosponges from the Upper Ordovician Beaverfoot Formation, Southeastern British Columbia, J. Keith Rigby and Paul A. Johnston

Submissions from 2002

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A New Occurrence of Archaeoscyphia Pulchra (Bassler) from the Ordovician of Western Canada, J. Keith Rigby, Godfrey S. Nowlan, and Peter A. Rowlands

Submissions from 1992

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Species of the Cretaceous tree fern Tempskya from Utah, William D. Tidwell and Naomi Hebbert

Submissions from 1990

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Tomlinsonia stichkania sp. nov., a permineralized grass from the Pliocene to (?)Pleistocene China Ranch beds in Sperry Wash, California, William D. Tidwell and E. M. V. Nambudiri

Submissions from 1987

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Aurealcaulis crossii gen. et sp. nov., an arborescent, osmundaceous trunk from the Fort Union Formation (Paleocene), Wyoming, William D. Tidwell and Lee R. Parker

Submissions from 1986

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Arnoldia kuesii, a new juvenile fernlike plant from the Lower Permian of New Mexico, William D. Tidwell and Sidney Ash

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Interconnected reproductive and vegetative remains of Populus (Salicaceae) from the middle Eocene Green River Formation, northeastern Utah, William D. Tidwell, Steven R. Manchester, and David L. Dilcher

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Pinuxylon woolardii sp. nov., a new petrified taxon of Pinaceae from the Miocene basalts of eastern Oregon, William D. Tidwell, Lee R. Parker, and Vaughn K. Folkman

Submissions from 1985

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Flora of the Lower Cretaceous Cedar Mountain Formation of Utah and Colorado; Part III, Icacinoxylon pittiense n. sp., William D. Tidwell, Gregory F. Thayn, and W. L. Stokes

Submissions from 1975

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Conifer wood from the Upper Jurassic of Utah; I, Xenoxylon morrisonense sp. nov., William D. Tidwell and David A. Medlyn