Torvosaurus (/ˌtɔːrvoʊˈsɔːrəs/) is a genus of carnivorous megalosaurid theropod dinosaur that lived approximately 165 to 148 million years ago during the late Middle and Late Jurassic period (Callovian to Tithonian stages) in what is now Colorado, Portugal, Germany, and possibly England, Tanzania, and Uruguay. It contains two currently recognized species, Torvosaurus tanneri and Torvosaurus gurneyi, plus a third species from Germany that is currently unnamed.[1] In 1979 the type species Torvosaurus tanneri was named: it was a large, heavily built, bipedal carnivore, that could grow to a length of about 10 meters (33 ft). T. tanneri was among the largest carnivores of its time, together with Epanterias and Saurophaganax (which could both be synonyms for Allosaurus). Specimens referred to Torvosaurus gurneyi were initially claimed to be up to 12 meters (39 ft) long, but later shown to be smaller.[2] Based on bone morphology Torvosaurus is thought to have had short but very powerful arms.