User:John Troodon/Study 3

=Comparison of Tyrannosauroidea teeth=

Kileskus
Object: Kileskus tooth, Dvuyakornaya Formation, Crimea

Kileskus, a medium sized theropod, had small teeth. They were ankered by very deep roots, and weren't very blade-like. These teeth were also not serrated.

In fact Kileskus teeth were more like teeth of Tyrannosaurus than teeth of any meat-eating dinosaur. Roots are recurved. This helps the tooth to be more stable in the jaw. "Cutting edge" of the tooth is flat, used to crush bone.

Alectrosaurus
Object: Alectrosaurus tooth, Dvuyakornaya Formation, Crimea

Teeth of Alectrosaurus are different. They are thinner than those of Kileskus. The cutting edge of such tooth is also flat, but much thinner.

Albertosaurus
Object: Albertosaurus tooth, Two Medicine Formation, USA

Albertosaurus teeth are usually long and very narrow. They are designed to:
 * Cut meat
 * Cut bone