of the clade have included Sanjuansaurus from the Ischigualasto Formation of Argentina, Staurikosaurus and Gnathovorax from the Santa Maria Formation of southern Brazil, Chindesaurus from the Petrified Forest (Chinle Formation) of Arizona, and possibly Caseosaurus from the Dockum Formation of Texas, although the relationships of the North American animals are not fully understood, and not all paleontologists agree. Grzegorz Niedźwiedzki, Stephen L. Brusatte et al. (2014) described a European putative member of the group on the basis of Norian age fossils discovered in Poland. An unnamed herresaurid was reported from the Carnian Pebbly Arkose Formation in Zimbabwe by Griffin et al. (2022). Other possible basal saurischians include Alwalkeria from the Late Triassic Maleri Formation of southern India, and Teyuwasu (recently considered synonym of Staurikosaurus), known from very fragmentary remains from the Late Triassic of Brazil. The discovery of the Herrerasaurid Gnathovorax indicates that the family falls outside the Theropoda and Sauropodomorpha in the cladistic analysis undertaken on the genus when it was described, but remains squarely within Saurischia as basal members of the order. An unnamed herrerasaurid from the Carnian of Brazil was described and possibly belongs to a new morphotype of relatively large proportions, informally known as the "Big Saturnalia". In the phylogenetic analysis within this study, herrerasaurids are recovered as non-eusaurischian saurischians. Phylogeny Fernando Novas (1992) defined Herrerasauridae as Herrerasaurus, Staurikosaurus, and their most recent common ancestor. Paul Sereno (1998) defined the group as the most inclusive clade including H. ischigualastensis but not Passer domesticus. Langer (2004) provided first phylogenetic definition of a higher level taxon, Herrerasauria, as Herrerasaurus but not Liliensternus or Plateosaurus. According to current phylogenetic studies, all of these definitions describe the same clade. The first cladogram presented follows one proposed analysis by Novas et al. in May 2011. In this review, Herrerasaurus is found to be a basal saurischian, but not a theropod. The second cladogram is based on an analysis by Sues et al. in April 2011. This review classified Herrerasaurus as a basal theropod. A large phylogenetic analysis of early dinosaurs by Matthew Baron, David Norman and Paul Barrett (2017) found Herrerasauridae within the clade Saurischia, as the sister group to Sauropodomorpha. This was the result of the removal of Theropoda from Saurischia and its placement next to Ornithischia within the newly created clade Ornithoscelida. Baron & Williams (2018) found Herrerasauria (including Daemonosaurus, Caseosaurus and Saltopus) outside Dinosauria. A similar result was