National Museum of Natural History - Dinosaurs - 0 views
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Ornithodirans are part of the group Archosauria, or “ruling reptiles.” Archosaurs have two additional openings in their skull, one between the eye and nose (the antorbital fenestra), and another in the lower jaw (the mandibular fenestra).
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Sean Goodenough on 11 Feb 13I never knew that the Omithodirans have variois wholes in ther skull besides the eyes, moth, nose and ears. But I would like to know why are thees extria holes used for? and whay exactily are they there.
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