Dinosaurs: Coelophysis


Coelophysis (Hollow Form)


Coelophysis was a small, lightly built, meat-eating Dinosaur that lived during the late Triassic period.  Coelophysis ranged in size, with adults ranging from 5 to 10 feet (1.5 - 3 m) in length. Specimens were also divided into two types - robust and graceful. These two forms probably represented a difference between Males and Females.

Scientists are not entirely sure which family this Dinosaur belonged to, however it does seem to share many characteristics to those found in Ceratosaurs, including four fingers on each hand and similar skeletal features. Other Dinosaurs in this family included Dilophosaurus and Ceratosaurus. Like Dilophosaurus, Coelophysis had a kinked upper jaw with a gap between its front and back teeth.


Coelophysis long legs and hollow bone structure suggest that it was a swift hunter. Remains of hundreds of individuals found at Ghost Ranch in New Mexico suggest that these Dinosaurs may have hunted in packs to bring down larger prey. Like other early meat-eating Dinosaurs, Coelophysis had many small, sharp teeth. Fossilized remains of Coelophysis have been found containing small reptiles, fish, and even the remains of other Coelophysis in their stomachs indicating that they were also cannibals.




coelophysis size


Pronounced: SEEL-oh-FY-sis

Name Means: "Hollow Form"
Length: 9 feet (2.8 m)
Height: 4 feet (1.3 m)
Weight: 66 pounds (30 kg)
Diet: Carnivore (Fish, Reptiles, Meat)
Time: Late Triassic - 220 million years ago
Habitat: Dry Savannah
Fossils Found: North America



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