Coelophysis

Order: Saurischia · Suborder: Theropoda · Infraorder: Ceratosauria · Family: Podokesauridae
Coelophysis was an early theropod that is thought to have lived in family groups and hunted in packs. Much of what is deduced of Coelophysis behavior is based on the hundreds of well-preserved skeletons found at Ghost Ranch, New Mexico. Coelophysis has recently been renamed "Rioarribasaurus," but some researchers believe that these are two different animals.

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Reference background: Natural History Museum, London — Dinosaurs; Smithsonian National Museum of Natural History — Dinosaurs; American Museum of Natural History — Dinosaurs & Fossils. Figures are typical published ranges; taxonomy follows the source era and modern consensus is noted where it differs. See our sources & fact-check policy.
Frequently asked questions
What does Coelophysis mean?
The name Coelophysis means “Hollow Form”. It is pronounced see-lo-FISE-iss.
When did Coelophysis live?
Coelophysis lived during the Late Triassic.
Was Coelophysis a carnivore or a herbivore?
Coelophysis was a carnivore.
How big was Coelophysis?
Coelophysis was about 9 feet (2.7 meters) long, around 4 feet (1.2 meters) tall, weighing up to 100 lbs (45.5 kg).
Related dinosaurs
Other dinosaurs from the Podokesauridae family.
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