Dinodontosaurus

Dinodontosaurus (meaning "terrible-toothed lizard") is a genus of dicynodont therapsid. It was one of the largest herbivores of the Triassic (about 2.4 metres (7.9 ft) 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
Temporal range: Mid-Late Triassic
~242–235 Ma
Mounted Dinodontosaurus skeleton
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Therapsida
Clade: †Dicynodontia
Clade: †Kannemeyeriiformes
Genus: †Dinodontosaurus
Romer, 1943
Type species
†Dinodontosaurus tener
(Huene, 1935 [originally Dicynodon])
Species
  • D. brevirostris Cox, 1968
  • D. tener (Huene, 1935)
  • D. turpior Huene, 1935 [nomen dubium]
Synonyms[1]

Species
  • 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, Romer 1943 are synonyms.[2]
  • Dinodontosaurus brevirostris is known from remains found in Argentina. Chanaria platyceps Cox, 1968 and Dinodontosaurus platygnathus are synonyms.
  • D. tener juveniles
  • Restoration of D. tener

References
  1. Kammerer, C. F.; Ordoñez, M. D. (2021). "Dicynodonts (Therapsida: Anomodontia) of South America". Journal of South American Earth Sciences. In press. doi:10.1016/j.jsames.2021.103171.
  2. Paleobiology Database.
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