Allosaurus is an extinct large carnivorous genus of theropod dinosaurs, who lived on territory of the United States and Europe during the Late Jurassic.
After its discovery, Allosaurus remained extremely popular for a long time, appearing in numerous films and books. Two of its the most famous appearances include appearances in The Lost World (1925) and King Kong (1933). He is usually depicted as a fast and dangerous predator, as he was in real life.
Name "Allosaurus" means "different lizard" and is a combination of two Greek words — ἄλλος (allos, meaning "different") and σαῦρος (sauros, meaning "lizard").
The name of the dinosaur from the 1933 film King Kong wasn't named onscreen, although it was called simply "Meat-Eater" in the screenplay and novelization as well. Though Willis O'Brien referred Meat-Eater as a member of Tyrannosaurus genus, Merian C. Cooper called it an Allosaurus. Meat-Eater was also referred as simply Allosaur in Russell Blackford's 2005 sequel to the original novelization, which means that although he may be not an Allosaurus, he is a member of the clade Allosauridae.