Prehistoric Beast is a ten-minute-long experimental animated feature film conceived, supervised and directed by Phil Tippett in 1984.

Made with the go motion animation technique, scenes from Prehistoric Beast were included in the 1985 full-length documentary Dinosaur!, first aired on CBS in the United States on November 5, 1985.

[2] Set 65 million years ago in what is now the Canadian province of Alberta, this short film depicts the chase and predation of a Monoclonius (sometimes synonymous with Centrosaurus) by a Tyrannosaurus rex (or a closely related genus like Albertosaurus/Gorgosaurus or Daspletosaurus).

Prehistoric Beast was only released in specialized animation festivals, but it convinced Robert Guenette and Steven Paul Mark to request Tippett's skills in order to transform it in a full-length documentary.

Tippett had already participated in The Empire Strikes Back (1980), animating the tauntauns seen in the film, and his experimental work on Prehistoric Beast and Dinosaur!

[4] An excerpt from this King Kong scene is shown in the final 1985 documentary Dinosaur!, as a reference to Prehistoric Beast, the short sequence by which it was preceded.