Allosaurus is shown feeding on a carcass with bones marked by grooves, possibly from the teeth or claws of the 140-million-year-old predator. Allosaurus teeth found nearby inspired the idea for the mount.

The Allosaurus co-stars in one of the Museum's most popular exhibits: the Barosaurus mount in the Theodore Roosevelt Rotunda. In the world's tallest freestanding dinosaur mount, the Barosaurus is rearing up to defend its young against an Allosaurus.