Dysalotosaurus (meaning 'uncatchable lizard') is a genus of herbivorous iguanodontian dinosaur. It was a dryosaurid iguanodontian, and its fossils have been found in late Kimmeridgian age-rocks (Late Jurassic) of the Tendaguru Formation,Tanzania. The type species of Dysalotosaurus isD. lettowvorbecki. Dysalotosaurus was named by Virchow in 1919. It has long been referred to approximate contemporary Dryosaurus but newer studies reject this synonymy.

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