Definition: Archosaurs are a class of dinosaurs that includes birds, reptiles, and other feathered animals. They evolved from a group of dinosaurs called sauropods, which were larger than modern day birds but smaller than many mammals. Some archosaurs include: 1. Tyrannosaurus Rex (also known as Triceratops) 2. Stegosaurus 3. Brachiosaurus 4. Triceratops (also known as Crocodylus) 5. Pteran
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