archosaur
/ˈɑrkəˌsɔr/
noun
- A member of a group of reptiles that includes crocodiles, dinosaurs, birds, and their extinct relatives.
- Crocodiles are modern archosaurs that have survived for millions of years.
- Birds are considered archosaurs because they evolved from dinosaur ancestors.
- The fossil of an ancient archosaur was discovered in the desert, showing features of both reptiles and birds.