Dinosaur time gap

Did Allosaurus and Ankylosaurus live at the same time?

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

Ankylosaurus to you: 66 million years.

More time separated them than separates Ankylosaurus from you.

Allosaurus

Late Jurassic · 155–143 million years ago

Named by Marsh, 1877

Fossils from United States, Portugal, France, 1 more

Silhouette by Will Toosey

Ankylosaurus

Late Cretaceous · 72–66 million years ago

Named by Brown, 1908

Fossils from United States, Canada

Dig from Allosaurus down to Ankylosaurus →

Between Allosaurus and Ankylosaurus

  • 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.
  • Ankylosaurus and Lambeosaurus could have met.
  • Allosaurus spans 12 million years of rock.

Did they live at the same time?

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