Dinosaurs like Coelophysis can survived on very litter water. They are also light boned, fast, and they are beautifully adapted for killing.
— Allen, on Coelophysis
in Dawn of the Mesozoic

Coelophysis ("Hollow Form") is a 3-meter long theropod dinosaur from the Norian stage of the Late Triassic period. It was also some of the very first and one of the earliest known genera of dinosaurs ever to evolve.

It was a relatively small, carnivorous theropod that lived during the Late Triassic - though for its time it was actually a fairly sizeable Theropod. Due to its sleek appearance and bone structure, its name means, 'Hollow Form'. It was about 2 metres long, and had a notably lightweight and yet lithe body.



As some of the very first dinosaurs, Coelophysis lived during the Late Triassic period 225-208 million years ago. It has been known to be one of the earliest species of dinosaurs that ever evolved.


Coelophysis was small but it was just as big as a man, stading 3-5 feet tall, 9-10 feet long, and weighing less than 100 lbs. They can survive on very little water and are also light-boned, fast, and beautifully adapted for killing.

They first appeared around 230 million years ago. But what made them unique were special hips and ankles that allowed them to stand perfectly balanced on two legs. With lightning fast reactions, they were built to survive. To these swift predators, Placerias were prey. It was their speed and agility that gave them the edge in the Mid-Triassic. When their numbers were on the increase, this led to confrontations.