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CladisticsVertebrate EvolutionExhibit SpecimensTimelinesPersonalities in PaleontologyVirtual ToursCurator VideosCladisticsVertebrate Evolution
Vertebrate Evolution: Backward-Pointing Protrusion of the Pubis Bone Backward-Pointing Protrusion of the Pubis Bone

A backward-pointing extension of the pubis bone in the hip evolved in the common ancestor of all ornithischian dinosaurs.

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