Cerapoda

 Cerapoda ("ceratopsians" and "ornithopods") is a clade of the dinosaur order Ornithischia, that includes ceratopsians, ornithopods and pachycephalosaurs.

Cerapoda Temporal range: Middle Jurassic–Late Cretaceous, 163–66 Ma  PreꞒ Ꞓ O S D C P T J K Pg N
Skulls of cerapod dinosaurs
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Order:	†Ornithischia
Clade:	†Genasauria
Clade:	†Neornithischia
Clade:	†Cerapoda Sereno, 1986
Subgroups
†Marginocephalia †Ornithopoda

ClassificationEdit

Cerapoda is divided into two groups: Ornithopoda ("bird-foot") and Marginocephalia ("fringed heads"). The latter group includes the Pachycephalosauria("thick-headed lizards") and Ceratopsia("horned faces"). The following taxonomy follows Richard J. Butler, Paul Upchurch and David B. Norman, 2008 (and Butler et al., 2011) unless otherwise noted.^[1][2]

Cerapoda was first named by Sereno in 1986 and defined by him as "Parasaurolophus walkeri Parks, 1922, Triceratops horridusMarsh, 1889, their most recent common ancestor and all descendants".^[1] The cladogram below follows a 2011 analysis by paleontologists Richard J. Butler, Jin Liyong, Chen Jun and Pascal Godefroit.^[2]

Cerapoda	Ornithopoda    Marginocephalia   Pachycephalosauria      Ceratopsia

This article uses material from the Wikipedia article  Metasyntactic variable, which is released under the  Creative Commons Attribution-ShareAlike 3.0 Unported License.