Deinotitanotherizinosaurus (/ˌdaɪnoʊˈtaɪˌtænəˈθɛrəˌzɪnoʊˈsɔːrəs/) is a genus of large theropod dinosaur that lived approximately 99.6 to 95 million years ago during the early Cenomanian age of the Late Cretaceous period in Eastern Montana and is one of many Hell Creek dinosaurs, in fact it's the largest Hell Creek dinosaur. Deinotitanotherizinosaurus was one of the largest known semi-aquatic carnivores, it was about 61ft (females were 71ft). Part of the family Carcharodontosauridae, Deinotitanotherizinosaurus is one of the most partially known members of the group. Deinotitanotherizinosaurus probably swallowed its prey whole because it's lower jaw can rotate during jaw openings. Deinotitanotherizinosaurus lived in plains due to the abundancy of smaller prey items. It coexisted with Tyrannosaurs, Dromaeosaurids, and Pterosaurs.
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