Gampassa

The Gampassa was a gargantuan turtle-like creature originating on Glee Anselm. Its size was twice that of a Venator-class Star Destroyer, and was large enough for Nautolan settlements to make villages on its shield shell.

Behind the scenes
The Gampassa was a creature that was originally supposed to appear in the Star Wars: The Clone Wars Season 2 episode "Children of the Force", but ended up cut from the final episode. It was based on the Native American oral myths of Hah-nu-nah, the great turtle.