A 74-million-year-old bone discovered in New Mexico may belong to an ancestor of T. rex, offering clues about the giant predator.
The new animal, based on a single fossil smuggled out of China and eventually sold to a private collector, has been named Raptorex-- which means "king raptor." It lived 125 million years ago in a lake ...
Tyrannosaurus rex evolved in North America, but its direct ancestor came from Asia, crossing a land bridge connecting the continents more than 70 million years ago, according to a new study led by UCL ...
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