Late Jurassic, 152–145 million years agoReputable sourceWell documented

Allosaurus, Apex Predator of the Jurassic

On the timeline · around Late Jurassic, 152–145 million years ago · The Jurassic

What happened

Allosaurus was the top predator of Late Jurassic North America — a powerful bipedal carnivore with a large skull and blade-like teeth. It hunted the same landscapes as Stegosaurus and the giant sauropods.

Why it matters

Known from abundant fossils, Allosaurus reveals the Jurassic food web at its peak — tens of millions of years before Tyrannosaurus rex evolved.

Sources

Natural History Museum. Allosaurus · Reputable source

Part of a timelineThe Age of Dinosaurs24 events · From the Great Dying to the asteroid that ended it all — 186 million years of dinosaurs, giants, and the birds they left behind, every milestone sourced.View all →