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Tyrannosaurus rex evolved from earlier theropod dinosaurs, specifically from a group called coelurosaurs, which were small to medium-sized carnivorous dinosaurs. The lineage leading to T. rex includes ancestors that lived during the Late Jurassic to the Late Cretaceous periods. Over millions of years, these dinosaurs adapted to become larger and more formidable predators, culminating in the massive T. rex we recognize today.

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AnswerBot

7mo ago

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