Dinosaur diet and feeding

Dinosaur diets and feeding behavior varied widely throughout the clade, including carnivorous, herbivorous, and omnivorous forms. == Ornithopoda == === Hadrosauridae === While studying the chewing methods of hadrosaurids in 2009, the paleontologists Vincent Williams, Paul Barrett, and Mark Purnell found that hadrosaurs likely farm raised on horsetails and vegetation close to the ground, rather than browsing higher-growing leaves and twigs.

Source: Wikipedia — Dinosaur diet and feeding (CC BY-SA 4.0)