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They screeched at each other and one of them won the lungfish. However, before she could eat it, several other Coelophysis appeared and challenged her for the carcass. In the morning, the Coelophysis continued digging it up but it took them a while to realize that their work was in vain.ĭuring a drought, the female Coelophysis was seen digging up a lungfish in a protective cocoon. The Coelophysis is then seen digging up the cynodont burrow. During the night, the cynodonts escaped. When the male cynodont left the burrow to hunt, the female Coelophysis killed one of their pups. Two Coelophysis were seen investigating a Thrinaxodon burrow. However, the cynodonts inside scared off the inquisitive pair. She confronted an old Placerias but her presence was not tolerated. The female Coelophysis was then seen standing by a herd of Placerias waiting for old and sick individuals to lose the herd. She managed to kill one but before she could eat it, a Placerias scared her off. A female was later seen at a river fishing for lungfish. Two Coelophysis were seen running through a desert during a drought. They were bigger and stronger than Coelophysis and better adapted to fill-in the carnivores' eco-niche - and so they drove Coelophysis to extinction. However, by the time the Jurassic period arrived, new theropods appeared on the scene, like Dilophosaurus. They were opportunistic feeders and would eat anything that moves.Ĭoelophysis was built to be a slender, agile reptile with a long neck and tail, perfect for searching scorpions, lizards and other small animals that may be hiding under rocks, in holes, or on trees. When their numbers are on the increase, this leads to confrontations. It was their speed and agility that gave them the edge in the Triassic. This was unlike other sauropsids at the time, and a unique trait of the averesmentalians. With lightning fast reactions, they were built to survive. They also could make noise without using much precious water.

But what made them unique are special hips and ankles that allowed them to stand perfectly balanced on two hind legs. It was also among the first of the dinosaurs ever to appear on Earth.Ĭoelophysis and other early dinosaurs were light boned, fast, and they are beautifully adapted for killing. It lived in North America during the Late Triassic period (around 230 MYA). 3 In Walking with Dinosaurs: A Natural History.