This is just something I did farting around, not staying in a level. But could make a Lizard Park Track one day. When I get better at animating LoL. BeamNG - Some Crazy Lizards - - YouTube
Here is the T-Rex.DAE with the textures already prepped for the Texture Cooker to do its thing. It is partial animated, surely someone can do a lot better job than I did. I could not figure out how to attach the eyes, claws, teeth to the body in Blender. Not where they move with the T-Rex. Probably a very easy thing to do, just gave up trying to figure it out. Just extract this zip in the level's art folder, load asset browser in the level, drag and drop in the scene. Give it a few moments and it will convert the textures for you.