Noun: thecodont reptile
- Extinct archosaur reptile, presumed to be in the ancestral line of dinosaurs, crocodiles, and birds
"Thecodont reptiles played a crucial role in the evolution of archosaurs";
- thecodont
Derived forms: thecodont reptiles
Type of: archosaur, archosaurian, archosaurian reptile
Part of: order Thecodontia, Thecodontia