Noun: archosaur
- Extinct reptiles including: dinosaurs, plesiosaurs, pterosaurs, ichthyosaurs, and thecodonts
"Crocodiles are the only living archosaurs";
- archosaurian, archosaurian reptile
Derived forms: archosaurs
Type of: diapsid, diapsid reptile
Part of: Archosauria, subclass Archosauria
Encyclopedia: Archosaur