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Ankylosauridae

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

Ankylosaurids
Temporal range: 160

Ankylosauridae Media

  • Dyoplosaurus tail reconstruction, showing terms used for parts of ankylosaurid tails

  • Skull of first known ankylosaurid specimen, belonging to Ankylosaurus

  • Club of indeterminate ankylosaurine, CMN 349

  • Gastonia and other polacanthine dinosaurs have uncertain placement, possibly within Ankylosauridae

  • Map of ankylosaurine distribution across North America in the Late Cretaceous

  • Diagram showing ankylosaurid skull anatomy

–66 mya
Euoplocephalus-tutus-1.jpg
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
Skeletal reconstructions of Gastonia at the Utah Museum of Ancient Life

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.

Scelidosaurus, whose remains had been found in England, was described by Richard Owen in 1861. Its exact position in the group is still not yet agreed. It was a largely quadrupedal armoured animal from the Lower Jurassic, feeding on low scrubby plants. This is pretty much a description of many dinosaurs in this group.

Taxonomy

Ankylosaur


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