Thecodontosaurus

Thecodontosaurus
Temporal range: Carnian
~
Skeletal restoration
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Dinosauria
Clade: Saurischia
Clade: Sauropodomorpha
Family: Thecodontosauridae
Genus: Thecodontosaurus
Riley & Stutchbury, 1836
Type species
Thecodontosaurus antiquus
Morris, 1843
Synonyms

Thecodontosaurus ("socket-tooth lizard") is a genus of herbivorous basal sauropodomorph dinosaur that lived during the late Triassic period (Carnian age). Its remains are known mostly from Triassic "fissure fillings" in southern England. Thecodontosaurus was a small bipedal animal, about 2 m (6.6 ft) long. It is one of the first dinosaurs to be discovered and is one of the oldest that ever existed. Many species have been named within the genus, but only the type species Thecodontosaurus antiquus is seen as valid today.