"Keyhole sandstone member. — The name Keyhole sandstone member is here proposed for a prominent cliff-forming sandstone unit of Dakota(?) age in the Black Hills region..."

"Stratigraphy and Petroleum Potential of Lower Cretaceous Dakota Group, Central Colorado Front Range... Bolyard and MacGregor analyze regional sandstone geometries and facies distributions."

"The Unresolved Dakota Problem in Utah: Sequence stratigraphic framework and nomenclature revisions across the Wasatch Plateau and surrounding transition zones."

"Oil Creek Road Section Supplement: Detailed stratigraphic logs, GPS waypoints, and lithologic descriptions for the Arbuckle Group and overlying Simpson formation exposures."

"Greenhorn Formation Full Supplement: Comprehensive regional marker beds, bentonite correlation intervals, and microfossil assemblage checklists."