Type/Species: Western Dragon
Origin: Sumerian Mythology
About Anzu / Zu
Zu was a clever and sneaky dragon that stole the Tablets of Law, the Tupsimati, from the god Enlil, who was once the river god but now also the god of dry land. Enlil wore this tablets on him, and they held the universal laws upon them. Zu took them up to the top of the Sabu Mountains where she kept them in her nest.
Enlil sent Ninurta after Zu to retrieve the tablets. Ninurta was the sun god and did as Enlil asked. With that, Ninurta killed Zu and returned to Enlil the Tablets of Law. 
Zu has more than one description. The first is that she had a lion's body with the head of an eagle. The second is the torso of a man with the body of an eagle. This is a Mesopotamian storm-bird or dragon.
For more information on footnotes and references, please see the bibliography.