Fantastically, as I write here ([link]
) the teeth of this creature really are bigger below than above, which is a peculiar adaptation. I am particularly amazed at the level of convergence in the jaw to a large host of different animals, including anomodont therapsids, such as Suminia
, and oviraptorosaurs and omnivoropterygids, which to varying degrees also diminished their teeth.
I tend to think of this guy as acquiring food with its teeth, rather than processing food, and that's what gives you such a huge set of rostral chompers.