#genus_Psittacosaurus  most primitive genus of horned dinosaurs; early Cretaceous
  supertype:  reptile_genus__reptilegenu  a genus of reptiles
  member of:  suborder_Ceratopsia
  member:  psittacosaur__psittacosaurus  primitive dinosaur actually lacking horns and having only the beginning of a frill; long hind and short front limbs; may have been bipedal

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