Dinosaur time gap

Did T. rex and Allosaurus live at the same time?

No. Tyrannosaurus (Late Cretaceous) and Allosaurus (Late Jurassic) are separated by 71 million years.

Tyrannosaurus to you: 66 million years.

More time separated them than separates Tyrannosaurus from you.

Tyrannosaurus

Late Cretaceous · 72–66 million years ago

Named by Osborn, 1905

Fossils from United States, Canada, Russia, 2 more

Silhouette by Fred Wierum

Allosaurus

Late Jurassic · 155–143 million years ago

Named by Marsh, 1877

Fossils from United States, Portugal, France, 1 more

Silhouette by Will Toosey

Dig from Allosaurus down to T. rex →

Between Allosaurus and T. rex

  • Barilium Early Cretaceous · 137–133 million years ago
  • Acrocanthosaurus Early Cretaceous · 121–113 million years ago
  • Oryctodromeus Late Cretaceous · 106–94 million years ago
  • Pteranodon Late Cretaceous · 86–84 million years ago
  • Centrosaurus Late Cretaceous · 84–72 million years ago
  • Elasmosaurus Late Cretaceous · 84–72 million years ago
  • Maiasaura Late Cretaceous · 84–72 million years ago
  • Rhabdodon Late Cretaceous · 84–72 million years ago

Fun Facts

  • Allosaurus is known from 147 fossil sites.
  • Tyrannosaurus is known from 87 fossil sites.
  • Lambeosaurus and Tyrannosaurus could have met.
  • Allosaurus spans 12 million years of rock.

Did they live at the same time?

Every animal you can pick →