▁and ▁eastern ▁G ond w ana . ▁ ▁A ▁cl ad ogram ▁by ▁T ort osa ▁et ▁al . ▁ 2 0 1 3 ▁places ▁Maj ung as aur us ▁in ▁a ▁new ▁sub family , ▁Maj ung as aur inae . ▁A ▁simplified ▁version ▁showing ▁the ▁tax a ▁within ▁the ▁group ▁is ▁shown ▁below . ▁ ▁Pale obi ology ▁ ▁Sk ull ▁orn ament ation ▁▁ ▁Maj ung as aur us ▁is ▁perhaps ▁most ▁distinct ive ▁for ▁its ▁sk ull ▁orn ament ation , ▁including ▁the ▁sw ol len ▁and ▁f used ▁nas als ▁and ▁the ▁front al ▁horn . ▁Other ▁cer at osa urs , ▁including ▁Car not aur us , ▁Raj as aur us , ▁and ▁Cer at osa urus ▁itself ▁bore ▁cr ests ▁on ▁the ▁head . ▁These ▁structures ▁are ▁likely ▁to ▁have ▁played ▁a ▁role ▁in ▁in tras pec ific ▁competition , ▁although ▁their ▁exact ▁function ▁within ▁that ▁context ▁is ▁unknown . ▁The ▁h ollow ▁cav ity ▁inside ▁the ▁front al ▁horn ▁of ▁Maj ung as aur us ▁would ▁have ▁weak ened ▁the ▁structure ▁and ▁probably ▁pre cluded ▁its ▁use ▁in ▁direct ▁physical ▁combat , ▁although ▁the ▁horn ▁may ▁have ▁served ▁a ▁display ▁purpose . ▁While ▁there ▁is ▁variation ▁in ▁the ▁orn ament ation ▁of ▁Maj ung as aur us ▁individuals , ▁there ▁is ▁no ▁evidence ▁for ▁sexual ▁dim orphism . ▁ ▁Fe eding ▁▁▁ ▁Scient ists ▁have ▁suggested ▁that ▁the ▁unique ▁sk ull ▁shape ▁of ▁Maj ung as aur us ▁and ▁other ▁ab el is aur ids