The discovery of hundreds of Coelophysis skeletons at Ghost Ranch is strong evidence that they lived in herds. The clue is in the fact that the skeletons appear to have been brought together suddenly at the same time, not slowly over a long period. How could this have happened? One explanation is that a herd drowned in a flash flood; another is that they died while trying to cross a river. Either way, their bodies were quickly buried under sediment.
d COELOPHYSIS SKELETON
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