Centrosaurinae

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Centrosaurines
Fossil range: Late Cretaceous

Kingdom:	Animalia
Phylum:	Chordata
Class:	Sauropsida
Superorder:	Dinosauria
Order:	Ornithischia
Family:	Ceratopsidae
Subfamily:	Centrosaurinae Lambe, 1915

Tribes

Pachyrhinosaurini Sampson, 1995b

Synonyms

Pachyrhinosaurinae Olshevsky, 1992

The Centrosaurinae is a subfamily of ceratopsid dinosaurs named by paleontologist Lawrence Lambe, in 1915, with Centrosaurus as the type genus. The centrosaurines are further divided into two tribes, the centrosaurins and the pachyrhinosaurins.^[1]

[edit] Phylogeny

Ceratopsidae
|--Ceratopsinae
`--Centrosaurinae
   |--Albertaceratops  
   `--+--+--Centrosaurus
      |  `--Styracosaurus
      `--Pachyrhinosaurini
         |--Einiosaurus
         `--+--Achelousaurus
            `--Pachyrhinosaurus

[edit] References

^ Sampson, S. D. (1995b). "Two new horned dinosaurs from the Upper Cretaceous Two Medicine Formation of Montana; with a phylogenetic analysis of the Centrosaurinae (Ornithischia: Ceratopsidae)." Journal of Vertebrate Paleontology, 15(4): 743-760.