Ankylosaurus

Meet ankylosaurus—one more extraordinary life to discover.

Discover the expedition atlas

A CLOSER LOOK

A reference overview

Ankylosaurus is a genus of armored dinosaur. Its fossils have been found in geological formations dating to the very end of the Cretaceous Period, about 70-66 million years ago, in western North America, making it among the last of the non-avian dinosaurs. It was named by Barnum Brown in 1908; it is monotypic, containing only A. magniventris.

Overview excerpt from Wikipedia contributors · Ankylosaurus, under CC BY-SA 4.0. Excerpt may be shortened. Overview retrieved 2026-10-09.

KNOW WHAT YOU ARE LOOKING AT

The evidence behind this discovery

Source-linked

This overview is attributed to Wikipedia contributors and was retrieved on 2026-10-09. Retrieval is not independent scientific review.

Reference media

The picture has a linked creator and license. Extinct-animal images may show a fossil, specimen or reconstruction; a reconstruction is not a photograph of the living animal.

Scope and uncertainty

Map points represent selected regions, not complete ranges or live sightings. References and identifications can change. A linked source is not an expert certification.

Read our evidence and editorial approach →

LET ONE QUESTION OPEN ANOTHER

Where will this discovery take you?

Another dinosaurs discovery

Tyrannosaurus rex ↗

Notice similarities, then follow the sources to explore the differences.

FOLLOW A QUESTION

How do fossils become evidence? ↗

Explore collection records and distinguish age estimates from the story of an individual animal.

Follow a discovery guide ↗

Saved on this browser.

Return to your collection

Ankylosaurus

A reference overview

The evidence behind this discovery

Where will this discovery take you?

Tyrannosaurus rex ↗

How do fossils become evidence? ↗

More dinosaurs to discover

Tyrannosaurus rex

Velociraptor

Triceratops

Stegosaurus

Diplodocus

Brachiosaurus