Tyrannosaurinae

The Tyrannosaurinae were giant carnivore dinosaurs from the Late Cretaceous (77 – 65.5 mya) of various places in North America and Asia.[1] They fed off other large dinosaurs, including Ceratopsians Hadrosauroids and Sauropods.

Tyrannosaurinae is thought to have shared the Tyrannosauridae family with another clade named Aublysodontinae,[2] but it may be a synonym of Tyrannosaurinae.[1] Potential definition of Tyrannosaurines from Aublysodontines are if the generas' fossil range was closer to Tyrannosaurus than to Aublysodon.[2]

Relation with Albertosaurinae and Aublysodontinae
Albertosaurinae is thought to be another subfamily of Tyrannosauridae, although the genera of Albertosaurinae may belong to Tyrannosaurinae.[1] [3]

Some people argue that Albertosaurinae (Currie et al. 2003) may be an independent subfamily because Aublysodon may not be a valid genus, and therefore Aublysodontinae may be equivalent to Tyrannosaurinae.[4]

When Albertosaurinae is considered the other subgroup of Tyrannosauridae next to Tyrannosaurinae

Phylogeny
The following cladogram of Tyrannosaurinae is based on [http://en.wikipedia.org/wiki/Thomas_R._Holtz,_Jr. Thomas R. Holtz, Jr.].[3]

Tarbosaurus
This Tarbosaurus cladogram is by Carr et al. 2005. This cladogram is by Currie et al. 2003

Alioramus
This cladogram is by Currie et al. 2003. This cladogram of Alioramus is by Holtz 2004.

Daspletosaurus
This cladogram of Daspletosaurus is by Carr et al. 2005 Currie et al. 2003

Gorgosaurus
This cladogram of Gorgosaurus is by Carr et al. 2005 This cladogram is by Currie et al. 2003.

Taxonomy
A version of the taxonomy of Tyrannosauridae, including Tyrannosaurinae.

Family Tyrannosauridae
 * Subfamily Albertosaurinae
 * Albertosaurus
 * Gorgosaurus
 * SUBFAMILY TYRANNOSAURINAE
 * Alioramus
 * Daspletosaurus
 * Tarbosaurus
 * Tyrannosaurus