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What is Genasauria?

Family Tree:
Dinosauria
Ornithischia
Genasauria
Pronunciation: JEN-a-SOR-ee-uh
Author: Paul Sereno
Year: 1986
Meaning: Cheek lizards (see etymology)
Locomotion: Bipedal or Quadrupedal (two or four legs)
Synonyms: None known
[Sereno 2005]Definition
The least inclusive clade containing Ankylosaurus magniventris, Triceratops horridus and Parasaurolophus walkeri.
About
Genasauria is a group of "bird hipped" (Ornithischian) dinosaurs that contains Thyreophora—the armoured battalion of stegosaurs and ankylosaurs, and Neornithischia—which includes the ceratopsians, pachycephalosaurs and ornithopods (collectively known as cerapodans), plus a few non-ceratopsian, non-pachycephalosaur, non-ornithopod outcasts.

Basically, Genasauria is Ornithischia without the basal ornithischians, all barring one of which are known as "heterodontosaurids". The odd one out is Pisanosaurus. No-one knows where that sucker belongs.

Click here to search DinoChecker for Genasaurians.
Etymology
Genasauria is derived from the Latin "gena" (cheek), and the Greek "sauros" (lizard) and "-ia" (a plural-forming suffix), named for all ornithischians with muscular cheeks.
Relationships
Further reading
• P.C. Sereno (1986) "Phylogeny of the bird-hipped dinosaurs (order Ornithischia)".
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To cite this page:
Atkinson, L. "DinoChecker FAQ entry :: What is Genasauria?"
http://www.dinochecker.com/dinosaurfaqs/what-is-genasauria›. Web access: 25th Jul 2017.
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