This green crested lizard was caught by some children across the road from our house. The local's call it a ' Iguana' but we know that it isn't. It's very quick to go black from bright green when stressed.
Sauria is a clade of reptiles that includes all living diapsids, as well as their common ancestor and all its extinct descendants. The ancestral saurian was probably a small lizard-like creature living in the Permian Period. This crown group is diagnosed by a number of details in skull and skeleton, and comprises the two important clades Lepidosauromorpha and Archosauromorpha.