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![]() Date: 2011-06-22 16:53:52Vertebral column Feathered dinosaurs Irregular bones Microraptor Human vertebral column Dromaeosauridae Cervical vertebrae Sacrum Velociraptor Anatomy Osteology Dromaeosaurs | Source URL: digitallibrary.amnh.orgDownload Document from Source WebsiteFile Size: 4,85 MBShare Document on Facebook |