hadrosaur
Quick Summary
Hadrosaurs, also known as duck-billed dinosaurs, were a group of ornithischian dinosaurs that lived during the Late Cretaceous Period. These herbivores were characterized by their broad, flattened snouts, resembling a duck's bill, and toothless beaks used for cropping vegetation. Their jaws contained rows of numerous small, grinding teeth adapted for processing tough plant material.1234
Hadrosaurs were bipedal but could also move on all fours, especially when feeding. They were among the most abundant dinosaurs in North America and Eurasia by the end of the Cretaceous. Some hadrosaurs, like Anatosaurus, grew to lengths of 9–12 meters (30–40 feet). Fossil evidence suggests they traveled in herds and cared for their young. Unlike some other hadrosaurs, Anatosaurus and its relatives, known as hadrosaurines, did not develop elaborate crests on their skulls.23
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