We report here the first dinosaur skeletal material described from the marine Fox Hills Formation (Maastrichtian) of western South Dakota. The find consists of two theropod pedal phalanges: one recovered from the middle part of the Fairpoint Member in Meade County. South Dakota; and the other from the Iron Lightning Member in Ziebach County. South Dakota. https://fitnessgravesyardes.shop/product-category/cam-pulley-assembly/