Dinosaurs · Large theropod

Tyrannosaurus

Say it tie-RAN-oh-sore-us. The name means ‘tyrant lizard’.

Tyrannosaurus beside a person 1.75 m tall. Ticks mark every metre.Body shape drawn for this site, showing the general build of large theropods

Length: 12 m
Weight: 7 tonnes
Diet: Meat-eaterother animals
Walked: On 2 legs
When: Late Cretaceous68 to 66 million years ago
Fossils found in: Canada, USA
Named by: Osborn (1905)
Family tree: Dinosauria › Saurischia › Theropoda › Tyrannosauroidea › Tyrannosauridae › Tyrannosaurinae

Where Tyrannosaurus sits in the age of dinosaurs.Periods from the ICS chart; dinosaur dates from the Natural History Museum

Large theropods. Big two-legged meat-eaters, such as Tyrannosaurus. See all 63

Lived at the same time

Alamosaurus · same country
Ankylosaurus · same country
Dryptosaurus · same country
Edmontosaurus · same country
Ornithomimus · same country
Pachycephalosaurus · same country
Thescelosaurus · same country
Torosaurus · same country

Other large theropods

Carnotaurus Late Cretaceous
Deinocheirus Late Cretaceous
Gallimimus Late Cretaceous
Therizinosaurus Late Cretaceous
Alioramus Late Cretaceous
Indosuchus Late Cretaceous
Rajasaurus Late Cretaceous
Abelisaurus Late Cretaceous

Source: Tyrannosaurus in the Natural History Museum Dino Directory, read 12 November 2026. Sizes are the museum's estimates for a typical adult. "Lived at the same time" lists dinosaurs whose dates overlap, which does not always mean they met.