Deinocheirus was the largest known ornithomimosaur (the group that Gallimimus, and Ornithomimus belongs to) which lived in Late Cretaceous Mongolia. Its name originates from the first fossils of the animal discovered, which were its large arms. In 2014, more fossils were discovered revealing a hadrosaur-like beak, feather impressions, and a large hump.
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Games
Jurassic World: The Game
Deinocheirus is one of the dinosaurs in the game. It is a legendary tournament dinosaur. Its hump appears to be much less pronounced than in real life, until its final evolution. An interesting feature to the Deinocheirus in the game is that it has fur-like feathers, which it had in reality. Despite being an ornithomimid, in the game, it uses the same model for the therizinosaurids, Therizinosaurus, Segnosaurus, Erlikosaurus, although it is likely because Deinocheirus looks more like a therizinosaurid than a ornithomimid.