Dinodontosaurus (meaning "terrible-toothed lizard") is a genus of dicynodont therapsid. It was medium to large dicynodont of the Triassic (with skull up to long
Species
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Dinodontosaurus tener is the most common species of dicynodont that existed in the Middle Triassic, and more common in the fossil layers that age in Rio Grande do Sul, in Rota Paleontológica. They are found mainly in the Paleontological Site Chiniquá in São Pedro do Sul and Candelária, where a group of ten pups were found together, demonstrating that these animals had strategies for coexistence in a group and caring for their offspring. Diodontosaurus pedroanum Tupi-Caldas, 1936 and Dinodontosaurus oliveirai, Alfred Romer 1943 are synonyms.
[ Paleobiology Database.]
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Dinodontosaurus brevirostris is known from skeleton remains and a coprolite animal latrine
[ "Giant prehistoric toilet unearthed", James Morgan, science reporter, BBC News, 28 November 2013] found in Argentina. Chanaria platyceps Cox, 1968 and Dinodontosaurus platygnathus are synonyms.
Phylogeny
Dinodontosaurus in a
cladogram from Szczygielski & Sulej (2023):
Gallery
File:Dinodontosaurus skull.jpg|Skull (side)
File:Dinodontosaurus skull 1.jpg|Skull (front)
File:Dinodontosaurus museu2x.jpg| D. tener juveniles
