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.
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Earth was home to billions of T-rex over lakhs of generations, suggests new study – Firstpost
How Many T-Rexes Once Roamed the Earth? Maybe Billions
An estimated 2.5 billion Tyrannosaurus rexes lived and died on Earth •
Study refutes claim that T. rex was three sep
Jurassic Park version of T-Rex didn't exist - they actually looked totally different, say scientists
Billions of T. rex existed on Earth – DW – 04/16/2021
How many T. rexes were there? Billions.
The Family Feud Behind a $32 Million T. Rex Named Stan - WSJ
Dinosaurs: Billions of T-Rex once roamed the Earth, scientists say
Billions of T. rexes may have roamed North America - Futurity
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