Tyrannosaurus was one of the largest dinosaurs that ever lived and is perhaps the best-known of all dinosaurs.

A bipedal carnivore from the Late Cretaceous period, Tyrannosaurus held the record for the biggest and most powerful land-living predator of all time for a century, until the discovery of Carcharodontosaurus and Giganotosaurus in the 1990s.

Dino Facts

  • Pronounced: tie-RAN-o-SAWR-us rex
  • Means: Tyrant lizard king
  • Size: 40 ft (12 m)
  • Where: North America (Alberta, Montana, Saskatchwan, Texas, Utah, Wyoming), Asia (Mongolia)
  • When: Late Cretaceous
  • Diet: Carnivorous (large dinosaurs)