Pachycephalosaurus Dome Fragment Size:Small the NWA 5000 meteorite is

the NWA 5000 meteorite is one of the largest lunar meteorites

Above: Artist's reconstruction of Chicxulub crater soon after impact

About the Sikhote Alin Meteorite

000 square miles)

50" nodule of Fairburn Agate from the Minnelusa Formation in South Dakota

Pachycephalosaurus Dome Fragment Size:Small the NWA 5000 meteorite isPachycephalosaurus 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