Protecovasaurus
Protecovasaurus is a genus of archosaurian reptile from the Late Triassic Tecovas Formation of the southwestern United States. It was initially described as a basal ornithischian dinosaur, but was redescribed as a non-dinosaurian archosaur by Irmis et al. . The type species, Protecovasaurus lucasi, was formally described by Andrew B. Heckert in 2004.
Its name, Protecovasaurus, means "before Tecovasaurus". Tecovas was the formation the holotype specimen was found in.