noun
- any of a group of reptiles that includes crocodiles, dinosaurs, and birds, characterized by having teeth set in sockets
Usage: scientific
Examples
- Crocodiles are the only living archosaurs besides birds.
- Dinosaurs were a diverse group of archosaurs that dominated the Mesozoic Era.
- The archosaur lineage split into two main branches millions of years ago.
- Paleontologists study archosaur fossils to understand reptile evolution.
- Birds are considered modern archosaurs by scientists.
- The archosaur skull has distinctive openings called fenestrae.