Full reference: R. T. Bakker. 1986. The Dinosaur Heresies. William Morrow and Company, Inc, New York 1-481
Parent taxon: Theropoda according to M. T. Carrano et al. 2012
Sister taxa: Ageroolithus, Anchisauripodidae, Archaeornithoididae, Asianopodus, Avipoda, Boutakioutichnium, Bueckeburgichnus, Byakudansauropus, Carmelopodus, Coeluridae, Coelurosauroidea, Compsognatha, Corpulentapus, Daemonosaurus, Deinocheirosauria, Elongatoolithidae, Eodromaeus, Eoraptor, Eubrontidae, Fenestrosaurus, Fuscinapedis, Gigandipodidae, Grallatoridae, Hadrosaurichnus, Herrerasauridae, Iranosauripus, Itsukisauropus, Jialingpus, Kalohipus, Kayentapus, Kuangyuanpus, Kuwajimasauropus, Laevisoolithidae, Megalosauropus, Minisauripus, Neotrisauropus, Ornithoides, Ovoraptor, Paleotheropoda, Parachirotheriidae, Paragrallator, Picunichnus, Plectropus, Protoavis, Reticuloolithus, Sarmientichnus, Saurexallopus, Sauropodidae, Selenichnidae, Selenichnus, Siamopodus, Sigilmassasauridae, Sinosaurus, Skartopus, Spinosauria, Subtiliolithidae, Tawa, Therangospodus, Triprismatoolithus, Tubercuoolithus, Unenlagiidae, Wildeichnus, Yangtzepus, Yaverlandia, Zanclodontidae, Szechuanosaurus yandonensis
Subtaxa: Averostra, Coelophysoidea, Dinoaves, Dracovenator
Ecology: ground dwelling carnivore