Pachycephalosaurus Dome Fragment Size:Medium but it is in fact

but it is in fact a broad term defining a meteorite field in the Chaco Province of Northwest Argentina

14th Century Knight’s Sword

Balancing 10-16 metric tons across such a long frame required strong legs with semi-fixed ankles and toes

These rugged mountains are composed primarily of metamorphic gneiss and granite

Our moon is uncommonly large proportional to our planet

Pachycephalosaurus Dome Fragment Size:Medium but it is in factPachycephalosaurus was a Late Cretaceous dinosaur with a unique feature: its skull had a battering ram like bone plate. This several inch thick helmet of bone allowed it to absorb blunt force when it struck its head against surfaces. This specimen is a piece of a Pachycephalosaurus skull dome fossil recovered from the Hell Creek formation in South Dakota. It's estimated to be over 66,000,000 years old. Both small and medium sized fragments are