Tyrannosaurus rex (Jurassic Park)

Tyrannosaurus (meaning "tyrant lizard") are a species of dinosaurs featured in Jurassic Park and it's spinoff, Jurassic World. They are an extinct genus of large theropod dinosaur. The species Tyrannosaurus rex (rex meaning "king" in Latin), often called T. rex or colloquially T-Rex, is one of the best represented members of the genus as well as all theropods. Tyrannosaurus lived throughout what is now western North America, on what was then an island continent known as Laramidia. 
They appear in all six Jurassic Park films.