Tyrannosaurus rex Tooth Progression, from the juvenile Tinker Kentrosaurus were able to more easily

were able to more easily fit in its mouth comfortably while being long and effective for hunting

Among the arthrodires were the Dunkleosteus

1 unworn tooth and 1 worn tooth

during the Early Miocene to the Pliocene

Four to six species are currently recognized

Tyrannosaurus rex Tooth Progression, from the juvenile Tinker Kentrosaurus were able to more easilyThis is an actual cast and reconstruction showing Tyrannosaurus rex tooth progression. It provides a fascinating look inside the tooth regeneration process of the most fierce predator North America has ever hosted. The exterior of the right dentary is intact, while the interior provides an open window to the innermost actions taking place. The Theropod dinosaurs regrew their teeth as the old ones became too worn or broke off. The blood vessels and