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Temporal range: 160–65 Ma
Skeleton of Scolosaurus thronus, Senckenberg Museum
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Superorder: Dinosauria
Order: Ornithischia
Suborder: Thyreophora
Infraorder: Ankylosauria
Family: Ankylosauridae
Brown, 1908

The Ankylosauridae) are a family of armoured dinosaurs which evolved 125 million years ago and became extinct 65 million years ago during the Cretaceous-Tertiary extinction event. Ankylosaurids and their sister group, the Nodosauridae make up the infraorder Ankylosauria.

They have been found in western North America, Europe and East Asia. Good specimens are rare; most are known only from fragments, and bits of their armour.

Taxonomy[change | change source]