Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or another type ...
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 ...
This image provided by the North Carolina Museum of Natural Sciences shows the skull of a tyrannosaur that may be a new species. (North Carolina Museum of Natural Sciences via AP) This image provided ...