Prehistoric Life
Prehistoric
Secrets in Stone
The Earliest Fossils
The Silurian Reef
Trilobites
Fish
The Coal Forests
Early Reptiles and Amphibians
Sea Reptiles
Flying Reptiles
The Teeming Seas
Hunting Dinosaurs
Two-Footed Plant Eaters
Plated and Armoured Dinosaurs
Horned Dinosaurs
The Mammal Age Dawns
Grassland Mammals
The Ice Age
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Ultrasaurus
There is no full skeleton of Ultrasaurus, but there are models of its leg bones. Ultrasaurus was even bigger than Brachiosaurus.
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Prehistoric Life
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Prehistoric
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Biggest Dinosaurs