Tyrannosaurus rex may actually be three separate species

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They Want to Break T. Rex Into 3 Species. Paleontologists Aren't Pleased. - The New York Times

Guys is AMNH 5027 a male or a female Tyrannosaur i am also questioning if AMNH 5027 is also a rex or imperator or regina and i saw something google that it

Mistaken identity? Scientists say this dinosaur isn't T-rex

Fossils Reveal a Possible New Tyrannosaur Species, the Closest Relative of T. Rex, Smart News

T. Rex might actually be three separate species: study

Tyrannosaurus rex may have been three species researchers claim - BBC Newsround

New controversial study says the T. rex was actually three species

New Dinosaur Species Could Explain Tyrannosaurus Rex Evolution

Tyrannosaurus rex may have been three species researchers claim - BBC Newsround

Tyrannosaurus rex may have been three separate species, say scientists, rex

Scientists propose Tyrannosaurus had three species, not just 'rex

They Want to Break T. Rex Into 3 Species. Paleontologists Aren't Pleased. - The New York Times

Nick Longrich - Blog

How many T. rexes were there? Billions.