 The presence of Acrocanthosaurus in the Cloverly Formation was established in 2012 with the description of another partial skeleton , UM 20796 . This specimen , consisting of parts of two vertebrae , partial pubic bones , a femur , a partial fibula , and fragments , represents a juvenile animal . It came from a bonebed in the Bighorn Basin of north @-@ central Wyoming , and was found near the shoulder blade of a Sauroposeidon . An assortment of other fragmentary theropod remains from the formation may also belong to Acrocanthosaurus , which may be the only large theropod in the Cloverly Formation . 
