Painted Cretaceous landscape with a Tyrannosaurus overlooking a herd of hadrosaurs

145 — 66 million years ago

The Age
of Giants

An illustrated journey through the final, most spectacular chapter of the dinosaurs — when flowers first bloomed and tyrants walked the earth.

Begin the expedition ↓

Field guide

Meet the inhabitants

Painting of Tyrannosaurus68 Ma · Maastrichtian

Tyrannosaurus

“Tyrant lizard”

Length
12.3 m
Weight
8–9 t
Diet
Carnivore
Found in
Western North America

Its bite force may have exceeded 35,000 newtons — enough to crush bone.

Sense of scale

Size against a human

Human
1.8 m

Deep time

79 million years

68 Ma

Age of Tyrants

T. rex, Triceratops and Ankylosaurus share North America.

Test yourself

Paleontologist's quiz

Which of these was NOT a dinosaur?

How long ago did the Cretaceous end?

Which dinosaur spent much of its time in water?