Coelophysis is a Latinized scientific name based on two Greek words: koilos, which means “hollow,” and physis, meaning “nature or condition.” American paleontologist Edward Drinker Cope (1840-1897) coined the name for the Triassic dinosaur in 1889 because of the hollow bones of Coelophysis. At the time, Cope saw the hollow bones as a distinctive feature of Coelophysis, but we now know that, like Coelophysis, all other meat-eating dinosaurs have hollow bones as well.