I have mentioned this animal before in a previous posting and about the computer game it is featured in. It is now at its maximum level and appears quite iridescent. It is from the mobile phone game Jurassic World.
This Permian Period reptile like amphibian is a Limnoscelis. It is thought to be a carnivore and grew to a length of about 1.5 meters.
Sources:
http://www.ludia.com/en/games/jurassic-worldtm-the-game
https://en.wikipedia.org/wiki/Limnoscelis