The Dinosaur Odyssey | 165 Million Years of Dinosaurs

Chapter III — The Dinosaur Age

Masters of the Mesozoic.

For 165 million years, dinosaurs dominated every continent on Earth. From towering sauropods to feathered hunters no larger than a house cat, they represent one of the most successful groups of animals that ever lived. This chapter brings their world to you with museum-quality imagery and original cinematic video.

Yet dinosaurs were not an accident of evolution. They were the culmination of hundreds of millions of years of planetary change — from the oxygen-rich atmosphere created by ancient life to the continents that had drifted into new configurations. Their story is deeply intertwined with the larger Gaia narrative.

ICONIC SPECIES

Featured Dinosaurs

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LATE CRETACEOUS

Tyrannosaurus rex

Apex Predator

CAR

The most famous dinosaur of all time, with the strongest bite force of any terrestrial animal that ever lived.

LATE CRETACEOUS

Triceratops

Three-Horned Herbivore

HER

The famous three-horned dinosaur that lived alongside T. rex in the final days of the Cretaceous.

LATE CRETACEOUS

Velociraptor

Feathered Hunter

CAR

A small, intelligent, feathered predator — nothing like its oversized Hollywood portrayal.

LATE CRETACEOUS

Spinosaurus

River Hunter

CAR

The largest carnivorous dinosaur and the only known semi-aquatic theropod.

Mesozoic Eras

Three periods. One age of giants.

252–201 MYA

Triassic

The first dinosaurs appear as small, bipedal creatures. The world recovers from the worst mass extinction in Earth’s history.

201–145 MYA

Jurassic

Dinosaurs diversify explosively. Giant sauropods, plated stegosaurs, and powerful allosaurs rule the land.

145–66 MYA

Cretaceous

Peak dinosaur diversity. Tyrannosaurs, duck-bills, and horned dinosaurs thrive — until the asteroid ends their reign.

IN THE GAIA STORY

Dinosaurs were the pinnacle of 165 million years of evolution.

They reshaped the planet

Large herbivores and predators altered landscapes, vegetation, and entire ecosystems for over a hundred million years. Without dinosaurs, the world would look profoundly different today.

They set the stage for us

Their extinction 66 million years ago opened the door for mammals to become the dominant large land animals — including humans. We are, in a very real sense, the heirs of the dinosaur age.

They still live among us

Birds are living dinosaurs. When you see a sparrow or an eagle, you are seeing the direct descendants of the Mesozoic giants. The age of dinosaurs never truly ended — it simply took flight.

THE COMPLETE COLLECTION

All Nine Species

Ready to meet them all?

Dive deep into each species with original video, detailed facts, and scientific insight.

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THE STORY CONTINUES

After the dinosaurs came the age of mammals — and us.

Chapter IV follows the survivors who inherited a broken world and traces the long path from small furry creatures to the only species that can tell the entire 13.8-billion-year story.

Continue to The Cenozoic Dawn →