†family Guaibasauridae Bonaparte et al. 1999 (saurischian)
Full reference: J. F. Bonaparte, J. Ferigolo, and A. M. Ribeiro. 1999. A new early Late Triassic saurischian dinosaur from Rio Grande do Sol state, Brazil. Proceedings of the Second Gondwanan Dinosaur Symposium, National Science Museum Monographs 15:89-109
Parent taxon: Sauropodomorpha according to M. D. Ezcurra 2010
Sister taxa: Anchisauria, Arcusaurus, Asylosaurus, Brontosauria, Efraasia, Eosauropus, Jaklapallisaurus, Lessemsaurus, Massopoda, Mussaurus, Nambalia, Navahopodidae, Pampadromaeus, Pantydraco, Pradhania, Sarahsaurus, Sauropodiformes, Thecodontosaurus
Subtaxa: Agnosphitys, Guaibasaurus, Panphagia, Saturnaliinae
Ecology: