Triceratops Epijugal Skull Fragment: North America, late Cretaceous Period,...

epijugal skull armored triceratops fused dinosaur youth distinctive horns known anatomy area skulls heavy skeletal adult type fragment piece rest genus dinosaurs form parrot-like cheek mistaken bison largest land preservation north america late mature looks like connected member group herbivore denver colorado 1887 large animals initially scientists realized represented ceratopsian beak frill reach feet wide cultural patrimony code 2600 chapter guaranteed accompany handle shipping cleaned coated layer cretaceous appears west covering described authenticity winning worldwide in-house condition stabilization nice period fascinating plate example just animal collection beaverton oregon items legal buy/sell statute money certificate bids ship convenience 153530 material intact million years provenance private size