Thyreophora is a clade of dinosaurs known for their distinctive body armor. This group includes well-known species like Stegosaurus and Ankylosaurus, which are characterized by bony plates and spikes that provided protection against predators. Thyreophorans were primarily herbivorous and lived during the Jurassic and Cretaceous periods. These dinosaurs had a unique body structure, often featuring a low profile and a wide stance. Their armor varied in form, with some having large, flat plates along their backs, while others had club-like tails. Thyreophora represents an important evolutionary branch in the history of dinosaurs, showcasing adaptations for defense.