Invalid subtaxa: Teyuwasu Kischlat 1999 [nomen dubium], Thecospondylus Seeley 1882 [nomen dubium]
Full reference: H. G. Seeley. 1888. On the classification of the fossil animals commonly named Dinosauria. Proceedings of the Royal Society of London 43:165-171
Parent taxon: Dinosauria according to S. J. Nesbitt 2011
Sister taxa: Actiosaurus, Carnosauriformes, Cridotrisauropus, Dictyoolithidae, Dystrophaeidae, Geosauridae, Gyrotrisauropus, Harpagosauria, Harpedactylus, Herreravia, Lagunculapes, Nyasasaurus, Ornithischia, Ornithischiformes, Ornithoscelida, Paleodinosauria, Phytodinosauria, Polemarchus, Prismatoolithidae, Rachitrema, Ravatosauropus, Saltosauropus, Sillimanius, Spondylosoma, Steropoides, Symphypoda, Tarsodactylus, Tarsoplectrus, Therosauria, Toyamasauripus, Tretospondylia, Xiphopeza, Youngoolithidae
Subtaxa: Alwalkeria, Anatopus, Anticheiropus, Argoides, Deuterotetrapous, Eusaurischia, Pachypodosauria, Platypterna, Plesiornis, Saurichnium, Sauropodomorpha, Tetrapodium, Theropoda, Trimabus
Ecology: