Tyrannosaurus rex Tooth, small Pachycephalosaurus These small dinosaurs are believed

These small dinosaurs are believed to be the ancestors of birds and are probably closely related to the dromaeosaurs

The first plesiosaur skeletons were found in England by Mary Anning

eastern Utah

000–780

Tyrannosaurus rex Tooth, small Pachycephalosaurus These small dinosaurs are believedDespite this tooth's small size, it clearly shows the flesh tearing ability of T. rex teeth. Robust and slightly curved for maximum bone crushing, muscle searing power. And look a little closer and you'll see small serrations, tiny ridges on the edge of the tooth for extra cutting ability. This tooth is a great reproduction at a super price! Click the image for a closer look. Specs: Tyrannosaurus rex. Late Cretaceous (70 m. y. a.). North America. Also