Urosaurus Ornatus is a species of lizard that is commonly known as the tree lizard or ornate tree lizard. There are several synonyms used to describe this species in scientific literature, including Sceloporus ornatus, Urosaurus ornatus, and Sceloporus magister ornatus. All of these names refer to the same species, which is native to the southwestern United States and Mexico. The Urosaurus ornatus is a small lizard that can grow up to six inches long. It is known for its bright green coloration and ornate patterns on its skin. These lizards are commonly found in trees and are active during the day.