Rockford’s famous dinosaur fossil may rewrite what is known about T. rex

Nanotyrannus lethaeus was a fast, agile predator distinct from T. rex, with longer legs, stronger arms and a body built for ...
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‘Mini T. Rex’ Was Actually a New Species

A small dinosaur skull found in Montana 40 years ago was thought to be a young T. rex. Turns out it was a smaller, faster ...