Before they were destroyed, the Ancient Walkers used to have dinosaur forms that they used when they met Sonic WAY back in #35. I know one was a terrodactyle, another was stegosaurous, (spell corrections ASIDE please), but what was the third one?
I always thought they were . . .
Bird-tiki - Some kind of theropod, like a Rex or an Allosaurus. Nevermind the height or realistic builds, it's upright-stance and general build made me think that way.
Tiki-tiki - Either a dromaesaur (Velociraptor, Deionychus) or one of the smaller critters, like a Compsognathus. Go the middle route in size and shape and call in a Troodon.
Skull-tiki - Pteradon, plain and simple.
Obviously there's issues about size ratios, but they're Chaos-infused mobosaurus. This isn't exact science.