Allosaurus

Allosaurus was a genus of theropod dinosaur known to have lived in Europe, North America and Africa in the Late Jurassic. One of the most well-known of all dinosaurs, it features heavily in works by the BBC.

Depiction
In Walking with Dinosaurs, the Allosaurus is mainly a dark grey in colour, with a red crest and an uneven black stripe down its side. The Allosaurus' in The Lost World (which also made a brief cameo at the end of Walking with Monsters) are either almost completely green or brown, with shorter skulls and no-coloured crests.

Allosaurus is depicted as a voracious pack hunter, the "Lion of the Jurassic" in Walking with Dinosaurs and its cousins, regardless of its appearance.

In Planet Dinosaur, the Allosaurus is depicted as a lone predator, and is easily outcompeted by Saurophaganax. Here, the animal is more red-coloured, with grey stripes and sharper crests.