File:Bird Pelvic Girdle Skeleton.png - Wikipedia
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Wrists, Ankles, Hands, and Feet – Morphology of the Vertebrate Skeleton
Anatomy & Bird Bones - Avian Skeletal System
Pelvis - Wikipedia
Pelvis - Wikipedia
LH-02-01, Prehistoric Wiki
Pelvis - Wikipedia
Pelvis - Wikipedia
Ichthyovenator, Jurassic Park Institute Wiki
File:Bird skeleton - National Museum of Natural History (Washington) (43429108160).jpg - Wikipedia
File:1911 Britannica-Bird-Pelvis of a Fowl.png - Wikimedia Commons
File:Appendicular skeleton diagram.svg - Wikipedia
Synsacrum - Wikipedia
Response to “The Debate over Classification of Archaeopteryx as a Bird”
Birds: the elements of ornithology . form a complete bony cup, thebottom of it being composed of membrane only. The three elements which thus make up each lateral half ofthe pelvis
