Comparison of Tyrannosauroidea teeth

Kileskus

Object: Kileskus tooth, Dvuyakornaya Formation, Crimea

Kileskus^[1], 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^[2] 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

Notes

^ Averianov, A. O.; et al. (2010). A new basal coelurosaur from the Middle Jurassic of Siberia. {{cite book}}: Explicit use of et al. in: |author= (help)
^ Holtz, T.R. (2001). The phylogeny and taxonomy of the Tyrannosauridae.

[1] Averianov, A. O.; et al. (2010). A new basal coelurosaur from the Middle Jurassic of Siberia. {{cite book}}: Explicit use of et al. in: |author= (help)

[bbt-2] Holtz, T.R. (2001). The phylogeny and taxonomy of the Tyrannosauridae.

[1]

[2]