The top of a Pachycephalosaurus skull could be 9 inches (23 centimeters ... cranium was so stout that it sometimes survives as a fossil when the rest of the skeleton degrades.

The only other place that a similar skull fossil has been found is in the U.S. The Geiseltal Saxony-Anhalt is located south-west of Halle and was a lignite mining area until 1993. Numerous ...

A near complete skull fossil found in Antarctica has revealed the oldest known modern bird — a mallard duck-size creature related to the waterfowl that live by lakes and oceans today ...