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.
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)