dinosaur classification

Dinosaur classification groups these reptiles based on shared features and evolutionary history. They are divided into two main groups: the Saurischia (lizard-hipped), which includes herbivorous sauropods and the carnivorous theropods (like Tyrannosaurus rex), and the Ornithischia (bird-hipped), which mostly includes herbivores like stegosaurs and ceratopsians. This classification reflects differences in their hips, skulls, and other features. Modern birds are considered a subgroup of theropod dinosaurs, making dinosaurs more diverse than often thought. Overall, classification helps scientists understand their relationships and evolutionary changes over millions of years.