How many T. rexes were there? Billions.
Por un escritor de hombre misterioso
Descripción
How many Tyrannosaurus rexes roamed North America during the Cretaceous period? That’s a question Charles Marshall pestered his paleontologist colleagues with for years until he finally teamed up with his students to find an answer.
How many T. rexes were there? Billions., rex
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A whopping 2.5 billion fully grown T. rexes walked the Earth in the course of the species' existence, paleontologists found
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Why T. rex has tiny arms University of California
Bold theory' that Tyrannosaurus rex is 3 species gets stomped to pieces
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