Tyrannosaurus rex may have been three separate species, say scientists
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Researchers have controversially argued there is enough variation in samples to point towards three species of Tyrannosaur, not one.
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Scientists propose Tyrannosaurus had three species, not just 'rex
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They Want to Break T. Rex Into 3 Species. Paleontologists Aren't Pleased. - The New York Times
We Have 3 Tyrannosaurus Species ! : r/Paleontology
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