WHAT ARE DUCK-BILLED DINOSAURS?  

Duck-billed dinosaurs, also known as hadrosaurids, were the most common herbivorous dinosaurs at the end of the Mesozoic Era, and all had a similar-looking snout.

The front of the jaws of the hadrosaurids meet in a U-shape to support a cupped beak used for cropping plants.

Some species have a much wider shape than others but there is so far no evidence it altered the feeding style. 

The main group of duck-billed dinosaurs in this category are known as Saurolophidae.

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