Knowra Coelophysis Coelophysis Coelophysis is an extinct genus of small, slender theropod dinosaurs from the Late Triassic of what is now North America. Its fossils are especially abundant at Ghost Ranch in New Mexico.
Coelophysis bauri : A species of Coelophysis known from abundant Late Triassic fossils in New Mexico. This species is the best-known representative of the genus and dominates the Ghost Ranch assemblage.
Theropoda : A diverse group of mostly bipedal dinosaurs that includes birds and their extinct relatives. Coelophysis belongs to this dinosaur group, whose defining traits include bipedal locomotion.
Bipedalism : Locomotion using two legs for support and movement. Coelophysis's long hind limbs and reduced forelimbs reflect an upright, two-legged gait.
Eoraptor : A small, early dinosaur from Late Triassic Argentina, known from the Ischigualasto Formation. Its South American fossils offer a comparison with Coelophysis across early dinosaur communities.
Ghost Ranch : A fossil-rich site in northern New Mexico that preserves a major Late Triassic dinosaur assemblage. Its quarry yielded thousands of Coelophysis fossils, including individuals of different ages.
Late Triassic : The final epoch of the Triassic Period, lasting from about 237 to 201 million years ago. Coelophysis lived during this interval as dinosaurs were diversifying.
Theropod locomotion : The movement of theropod dinosaurs, typically involving an upright trunk and weight-bearing hind limbs. Coelophysis's slender limbs and tail are interpreted as adaptations for agile movement.
Herrerasaurus : A large-bodied early dinosaur from Late Triassic Argentina, often classified as a basal theropod or close relative. It contrasts with Coelophysis in body size and illustrates the diversity of early predatory dinosaurs.
Whitaker Quarry : A fossil quarry at Ghost Ranch in New Mexico, famous for its mass accumulation of Coelophysis remains. The quarry provides the largest and most concentrated fossil sample of the genus.
Chinle Formation : A Late Triassic geological formation in the southwestern United States, known for fossil-rich river and floodplain deposits. Its rocks include the strata that preserve the Ghost Ranch Coelophysis fossils.
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