|Named By:||Jaci Antonio Louzada Tupi Caldas in 1936|
|Time Period:||Middle Triassic-Late Triassic|
|Location:||Argentina, Brazil and Germany|
|Size:||Up to 2.4 meters long|
|Fossil(s):||Many individuals, including remains of juveniles|
|Classification:||| Chordata | Synapsida | Therapsida | Anomodontia | Dicynodontia | Kannemeyeriidae ||
|Also known as:||| Dinodontosaurus oliveirai ||
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.