Furileusauria

Furileusauria (meaning "stiff back lizards") is a clade of derived abelisaurid theropod dinosaurs nested within Brachyrostra, the short-snouted, largely South American branch of the abelisaurids. It is a stem-based group defined by the inclusion of Carnotaurus but the exclusion of Ilokelesia, Skorpiovenator, and Majungasaurus, and it encompasses most of the latest Cretaceous abelisaurids of South America, among them Carnotaurus, Aucasaurus, Viavenator, and Llukalkan. Its members were among the larger brachyrostrans, averaging roughly 7 meters (23 feet) in length. A more restrictive tribe within the group, Carnotaurini, unites Carnotaurus and Aucasaurus. The clade is distinguished by a suite of features in the skull, cervical vertebrae, tail, and hindlimb, and the recently described French taxon Caletodraco extends its range beyond South America into Europe.