Zupaysaurus ("devil lizard") is a genus of early theropod dinosaur living during the Rhaetian stage of the Late Triassic to the Early Jurassic of what is now Argentina. Although a full skeleton has not yet been discovered, Zupaysaurus can be considered a bipedal theropod, up to 4 meters (13 ft) long. It may have had two parallel crests running the length of its snout.

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