Allosaurus S 41901 Carnegie

Allosaurus S 41901

approx. 23 x 11.5 cm

NAME: Allosaurus (“different lizard”)
KIND: Saurischia (“lizard hips”)
FOOD: Carnivore (meat eater)
WHEN: Late Jurassic (about 150 million years ago)
WHERE: Western North America, possibly Europe
LENGTH: 33 feet (10 m)
WEIGHT: About 2.5 tons (2,300 kg)
SCALE: 1:35

Allosaurus is a theropod, or meat-eating dinosaur – a smaller and more ancient relative of the famous Tyrannosaurus rex. It was a specialized predator with a large skull, jaws lined with sharp, serrated teeth, and short yet powerful arms tipped with three large, hooked claws. Allosaurus lived alongside, and probably hunted, some of the largest-known plant-eating dinosaurs, such as Apatosaurus, Diplodocus, Camarasaurus, and Brachiosaurus. Much smaller than any of these giants, it may have gathered into packs when attempting to tackle such enormous prey. Allosaurus also fed upon the smaller plant-eating dinosaurs that shared its Late Jurassic world, such as Dryosaurus, Camptosaurus, and Stegosaurus.