Definitions for "Revueltosaurus"
Revueltosaurus ("Revuelto lizard") was a prehistoric pseudosuchian reptile from Late Triassic New Mexico and Arizona. It was originally described as an ornithischian dinosaur based on several discoveries of teeth, but was reclassified when a partial skeleton was discovered in 2004. Since all but one Triassic ornithischians are known only from teeth and jaw fragments, the discovery has challenged their validity.