CerapodaCeratopsiaCeratopsidaeCeratopsoideaChasmosaurinaeCoronosauriaDinosauriaGenasauriaLate CretaceousMarginocephaliaNeoceratopsiaNeornithischiaNorth AmericaOrnithischiaTriceratopsini

Agathaumas sylvestris

Dinosaur: Agathaumas sylvestris

Type: Ceratops

Length*: 6.2 m 20.3 ft
Weight*: 3.3 tons 7,275 lb
*The largest known specimen

ESR: 2.5 / 4 (estimated size reliability)


Material: 16 vertebrae (dorsal, sacral, caudal), partial pelvis and several ribs.
References: Cope, E.D. (1872). "On the existence of Dinosauria in the Transition Beds of Wyoming."


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