Tyrannosaurus rex is the King of the DInosaurs that lived in what is now North America during the Upper Cretaceous period, 68 to 66 million years ago. P.S Rex is a Latin name for a King. then prey Pteranodon Leaellynasaura Ankylosaurus Dimetrodon Parasaurolophus Stegosaurus Struthiomimus Apatosaurus Triceratops was seen in Treehouse of Horror V when he attacks Homer when he travels in time of the dinosaurs. He dies from Homer's sneeze and he sneezes and falls dead with the other dead Dinosaurs from Homer's sneeze.
- THOH – "Treehouse of Horror III"
- THOH – "Treehouse of Horror V"
- Episode – "Bart Sells His Soul"
- Episode – "Homer Simpson in: "Kidney Trouble""
- Episode – "Homerazzi"
- Episode – "The Book Job"
- Episode – "Days of Future Future"