A paleontologist was trying to locate the site of a famous 1908 discovery when a rancher in Wyoming shared an important clue.

There are literally decades of research... based on a premise that this article overturns,” said one paleontologist.

Now a research team said there’s new evidence that resolves the case. The latest clue comes from a complete skeleton — first ...

Palaeontologists have argued for decades over whether certain fossils are young Tyrannosaurus rex or another species entirely ...