Full reference: K. Padian, J. R. Hutchinson, and T. R. Holtz, Jr. 1999. Phylogenetic definitions and nomenclature of the major taxonomic categories of the carnivorous Dinosauria (Theropoda). Journal of Vertebrate Paleontology 19(1):69-80
Parent taxon: Saurischia according to F. E. Novas et al. 2011
See also Bittencourt and Langer 2011, Cabreira et al. 2011, Ezcurra 2006, Langer 2004, Langer and Benton 2006 and Yates 2005
Sister taxa: Alwalkeria, Anatopus, Anticheiropus, Argoides, Aristosuchia, Avalonianus, Coelurosaurichnus, Deuterotetrapous, Nhandumirim, Pachypodosauria, Pachypodosauroidea, Palaeopoda, Parachirotherium, Platypterna, Plesiornis, Saurichnium, Saurischichnus, Sauropoda, Streptospondylus recentior, Thecospondylus, Trihamus, Trimabus
Subtaxa: Sauropodomorpha
Ecology: