saurolophines
Saurolophines are a diverse subfamily of hadrosaurid dinosaurs, commonly known as duck-billed dinosaurs. They are characterized by their large size, herbivorous diet, and the presence of elaborate cranial crests, though some members of the group are crestless. These crests varied greatly in shape and size, often featuring hollow chambers that are believed to have been used for display, vocalization, or thermoregulation. Saurolophines lived during the Late Cretaceous period, with fossil evidence found across North America, Asia, and Europe.
Their dental batteries, composed of hundreds of tightly packed teeth, were highly efficient for grinding tough
Prominent saurolophine genera include Edmontosaurus, known for its large size and lack of a prominent crest,