Allosaurus: quick facts
Allosaurus is one of the best known carnosaurs. Sixty individuals, from juveniles to adults, were found at one site in Utah. It is likelythat Allosaurus may have been the most common carnosaur of the
Period
Late Jurassic
Diet
Carnivore
Length
40 feet (12.2 meters)
Weight
4,000 lbs (1,814 kg)
Family
Allosauridae
Reference background: Natural History Museum, London — Dinosaurs; Smithsonian National Museum of Natural History — Dinosaurs; American Museum of Natural History — Dinosaurs & Fossils. Figures are typical published ranges; taxonomy follows the source era and modern consensus is noted where it differs. See our sources & fact-check policy.