Cerapoda

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Cerapods
Temporal range: Middle JurassicLate Cretaceous, 169–66.5 Ma
Museum of the Rockies Dinosaur Heads.JPG
Skulls of cerapod dinosaurs
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Ornithischia
Clade: Genasauria
Clade: Neornithischia
Clade: Cerapoda
Sereno, 1986
Subgroups

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

Classification[edit]

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 horridus Marsh, 1889, their most recent common ancestor and all descendents".[1] The cladogram below follows a 2011 analysis by paleontologists Richard J. Butler, Jin Liyong, Chen Jun and Pascal Godefroit.[2]

Cerapoda

Ornithopoda Parasaurolophuspic steveoc.jpg

Marginocephalia

Pachycephalosauria Pachycephalosauria jmallon.jpg

Ceratopsia Triceratops BW.jpg

References[edit]

  1. ^ a b Richard J. Butler; Paul Upchurch; David B. Norman (2008). "The phylogeny of the ornithischian dinosaurs". Journal of Systematic Palaeontology. 6 (1): 1–40. doi:10.1017/S1477201907002271. 
  2. ^ a b Richard J. Butler; Jin Liyong; Chen Jun; Pascal Godefroit (2011). "The postcranial osteology and phylogenetic position of the small ornithischian dinosaur Changchunsaurus parvus from the Quantou Formation (Cretaceous: Aptian–Cenomanian) of Jilin Province, north-eastern China". Palaeontology. 54 (3): 667–683. doi:10.1111/j.1475-4983.2011.01046.x.