Three drivers of subsidence are recognized in the Western Interior Basin: Mesozoic–early Cenozoic flexure adjacent to thin-skinned, eastward propagating Sevier Orogeny, Late Cretaceous–Eocene associated with thick-skinned Laramide Uplifts and Cretaceous dynamic subsidence. This study combines outcrop lithofacies, palaeocurrent measurements, detrital zircon geochronology, biostratigraphy, strati...