.46" Rooted Pachycephalosaurus Tooth

This is gorgeous .46" rooted Pachycephalosaurus tooth collected in Powder River County, MT. These teeth are fairly rare in the formation, particularly ones with roots and in as nice of condition as this one. It exhibits almost no feeding wear and even the minute details in the crown can be seen. Comes in an acrylic display case.

This tooth comes from the Hell Creek Formation of Montana. The Hell Creek Formation represents a sub-tropical floodplain which would have been similar to coastal, modern-day Louisiana. This area was home to some of the most recognizable dinosaurs in the world including triceratops, hadrosaurs and the king of them all, T-Rex.

Pachycephalosaurus was a bipedal dinosaur that lived during the Late Cretaceous period and probably was about 15 feet in length.

Pachycephalosaurus had a distinctive, large, bony, dome on top of it's skull up to 10 inches thick to cushion it's brain from impacts.

Some paleontologists believe this thick skull may have been used for head-butting, much like rams while others contend it may have been a sexual display.

It was one of the last non-avian dinosaurs before the K-T extinction event, 65 million years ago.

There is only one known species of Pachycephalosaurus, Pachycephalosaurus wyomingensis. It's remains have been found in Montana, South Dakota and Wyoming.

It was either a herbivore or an omnivore with small leaf shaped teeth which would have been very effective at shredding plants.