An ichthyosaur skull from the Cretaceous of Wyoming - 1968
The stratigraphy and paleontology of Bridger A - 1971
Middle Eocene rodents (Mammalia) from southwestern Wyoming - 1974
An addition to the known geographic range of the Permian pelecypod Oriocrassatella - 1977
Animal tracks in the Navajo-Nugget Sandstone - 1978
Revised and Amended Fossil Vertebrate Faunal Lists, Early Tertiary, Hoback Basin, Wyoming - 1978
Vestigial shell structure in silicified pectinacean pelecypods - 1984
The late Pleistocene (Rancholabrean) avifauna of Little Box Elder Cave, Wyoming - 1985
Redescription of Bellerophon bittneri (Gastropoda: Triassic) from Wyoming - 1985
Bryozoans from the Phosphoria Formation (Permian), southeastern Idaho - 1986
Middle Blancan vertebrate assemblage from the Verde Formation, Arizona - 1987
Preliminary report on Late Cretaceous mammals of the Kaiparowits Plateau, southern Utah - 1988
A North Dakota Triceratops skull - 1997
Silicified gastropods from the Permian Phosphoria rock complex of Wyoming - 1997
Marine fossils from Permian redbeds (Satanka Shale) at Laramie, Wyoming - 1997