Ornithischian Dinosaur -

: A backward-pointing pubis bone, parallel to the ischium, likely evolved to accommodate a larger digestive system for processing plants.

: A unique, beak-like bone at the tip of the lower jaw used for cropping vegetation. ornithischian dinosaur

: Inset tooth rows that formed cheeks, allowing them to hold and grind food efficiently. : A backward-pointing pubis bone, parallel to the