†family Thecodontosauridae Lydekker 1890 (prosauropod)
Parent taxon: Prosauropoda according to F. v. Huene 1948
Sister taxa: Anchisauridae, Barrancapus, Blikanasauridae, Euskelesauridae, Evazoum, Mussauridae, Otozoidae, Plateosauravidae, Plateosauravus, Plateosauria, Prototrisauropus, Pseudotetrasauropus, Ruehleia, Saurischichnus, Tetrasauropus, Yimenosaurus, Yunnanosauridae, Yunnanosaurus
Subtaxa: none
Ecology: ground dwelling herbivore