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Temporal range: Middle Triassic–Late Triassic
Dinodontosaurus skeleton UFRGS.jpg
Mounted Dinodontosaurus skeleton
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Synapsida
Order: Therapsida
Suborder: Anomodontia
Infraorder: Dicynodontia
Family: Kannemeyeriidae
Genus: Dinodontosaurus
Tupi Caldas, 1936

Dinodontosaurus (meaning "terrible-toothed lizard") is a genus of dicynodont therapsid. It was one of the largest herbivores of the Triassic (about 2.4 m long and weighing a few hundred pounds) and had a beak corneum. It lived in the Middle Triassic but disappeared in the Upper Triassic.


  • Dinodontosaurus pedroanum [3] was a species that lived in the region of paleorrota, Brazil (8 fossils collected) and Argentina (2 fossils collected). It was described the first time by Tupi Caldas in 1936 and is synonymous Dinodontosaurus oliveirai, Romer 1943.
D. turpior juveniles
Restorationof D. turpior

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