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Theropod skeleton, Allosaurus fragilis
Common Name: Theropod
Scientific Name: Allosaurus fragilis
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Dinosauria
Order: Saurischia
Family: Allosauridae
Dimensions: Centimetres: 640 (length), 130 (width), 197 (height)
Period: Late Jurassic, 150 million years old
Museum ID Number: 12868
Image Number: ROM2007_9664_11

Allosaurus was a theropod – one of the largest carnivorous dinosaurs of the Jurassic. It had a strong flexible neck, powerful legs and heavy bones. Its front limbs were equipped with long claws for grasping prey. The skull had large jaws with long, curved, serrated teeth for slashing. The skull was designed to deform slightly to absorb stress while biting. Allosaurus probably hunted large animals, such as sauropods. Although a predator of this size would have been capable of taking down Stegosaurus or Camptosaurus, it is unlikely that it could have handled a large sauropod, which suggests that Allosaurus may have hunted in packs.

Location: Vernal, Utah, USA

Exhibit History: James and Louise Temerty Galleries of the Age of Dinosaurs; Dinosaurs/Vertebrate Palaeontology, Life Sciences Galleries, second floor

ROM Links: James and Louise Temerty Galleries of the Age of Dinosaurs

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