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Ornithischia

A Dictionary of Zoology | 1999 | | Â© A Dictionary of Zoology 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

Ornithischia (class Reptilia, subclass Archosauria) One of two orders of Mesozoic dinosaurs, which is distinguished primarily on the basis of its bird-like pelvis. Ornithischian dinosaurs were exclusively vegetarian and produced both bipedal forms (the Ornithopoda) and four-footed forms.

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MICHAEL ALLABY. "Ornithischia." A Dictionary of Zoology. 1999. Encyclopedia.com. 5 Jul. 2009 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "Ornithischia." A Dictionary of Zoology. 1999. Encyclopedia.com. (July 5, 2009). http://www.encyclopedia.com/doc/1O8-Ornithischia.html

MICHAEL ALLABY. "Ornithischia." A Dictionary of Zoology. 1999. Retrieved July 05, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-Ornithischia.html

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