Meaning: Hollow Form
Period: 200 million years ago; late Triassic
Discovered: United States; Arizona, New Mexico
Length: Less than 9 feet
Diet: Meat eater
Designed to eat any animal smaller than itself, Coelophysis was a small but quick hunter. Its speed came from its hollow bones – similar to the bones of modern birds. It had more than 100 pointed, serrated, blade-like teeth and sharp claws. These adaptations helped it to hold and kill its food – just like a lion today.
Like lions, Coelophysis may have hunted in groups. This hunting style would have helped it to take larger prey.