ornithiscians


 * ORNITHISCHIANS are any herbivorous dinosaurs of Ornithischia, having a pelvis resembling that of a bird.**
 * ornithischian dinosaurs got their name from " Ornithischia" wich means bird hipped.
 * [[image:ornothiscians.jpg width="405" height="298" align="right"]]Scientist divide the dinosaurs into 2 major groups by the way their hipped.

The hip girdle of a typical ornithischian dinosaur is enlarged in the second diagram at right. In the diagram, the pubis is pale orange, the ilium is red, and the ischium is brown.
 * Ornthopoda is one of the three major groups of Ornithischia or bird hipped dinasours.
 * The sauropod dinosaurs and their prosauropod kin are classified in the same suborder as theropods.


 * Examples of "Bird-Hipped" dinasaurs include:**


 * **[[image:http://www.enchantedlearning.com/hgifs/Heterodontosaurus.GIF width="60" height="41"]][[image:http://www.enchantedlearning.com/igifs/Iguanodon.GIF width="63" height="34"]]Onrithapods-** Hypsilophodontids, Iguanodontids, Fabrosauria (= lesothosauria, primitive ornithopods),Hadrosaurs (Maiasaura, Parasaurolophus).
 * [[image:http://www.enchantedlearning.com/sgifs/Styraco.GIF width="76" height="52" caption="Styracosaurus" link="http://www.enchantedlearning.com/subjects/dinosaurs/dinoclassification/Marginocephalia.shtml"]] **Marginocephalia**- ceratopsians (triceratop, styracosaurs, etc), pachycepphalosauria (stegoceras, pachycephalosaurus etc.)


 * [[image:http://www.enchantedlearning.com/sgifs/Stegosaurus.GIF width="67" height="30"]]**Thyreophora ( or enoplosauria)**- ankylosaurids, stegosaurids.
 * All ornithischians are united by a pubis pointing backward, running parallel with the ischium.


 * There were many kinds of ornithischian dinosaurs, dating back to the early Jurassic.
 * The ornithischians and saurischians, both of which, based on fossil finds, appeared to arise in the Late Triassic, between 225 and 200 million years ago.
 * The nearly 400 species of **ornithischians** were entirely herbivorous