A new specimen of Torvosaurus tanneri originally collected by Elmer Riggs.

A new specimen of the theropod dinosaurTorvosaurus tanneridiscovered by Elmer Riggs in 1899 in the Freezeout Hills of Wyoming and held in the Field Museum of Natural History is described. This specimen demonstrates that unreported material of this species has been present in museum collections 80 years prior to the species' scientific description and it likely represents the first non-dental material of this species to be collected. This material comprises parts of the left foot and right hand, including phalanges which were previously unknown forTorvosaurus, and substantiates the possibility that otherTorvosaurusmaterial may be undiscovered in museum collections. Its occurrence in a multitaxon quarry is consistent with other skeletal finds ofTorvosaurus, all or most of which occur in association with other, more common Morrison dinosaur taxa. [ABSTRACT FROM AUTHOR]