▁bore ▁sevent een ▁teeth ▁in ▁both ▁the ▁max illa ▁of ▁the ▁upper ▁j aw ▁and ▁the ▁dent ary ▁of ▁the ▁lower ▁j aw , ▁more ▁than ▁in ▁any ▁other ▁ab el is aur id ▁except ▁R ug ops . ▁ ▁The ▁post c ran ial ▁ske leton ▁of ▁Maj ung as aur us ▁closely ▁res emb les ▁those ▁of ▁Car not aur us ▁and ▁A uc as aur us , ▁the ▁only ▁other ▁ab el is aur id ▁gener a ▁for ▁which ▁complete ▁ske let al ▁material ▁is ▁known . ▁Maj ung as aur us ▁was ▁b ip ed al , ▁with ▁a ▁long ▁tail ▁to ▁balance ▁out ▁the ▁head ▁and ▁tor so , ▁putting ▁the ▁center ▁of ▁gravity ▁over ▁the ▁h ips . ▁Although ▁the ▁cer v ical ▁( ne ck ) ▁verte bra e ▁had ▁numerous ▁cav ities ▁and ▁exc av ations ▁( ple uro co els ) ▁to ▁reduce ▁their ▁weight , ▁they ▁were ▁robust , ▁with ▁ex agger ated ▁mus cle ▁attachment ▁sites ▁and ▁rib s ▁that ▁inter locked ▁for ▁strength . ▁O ss ified ▁tend ons ▁attached ▁to ▁the ▁cer v ical ▁rib s , ▁giving ▁them ▁a ▁for ked ▁appearance , ▁as ▁seen ▁in ▁Car not aur us . ▁All ▁of ▁these ▁features ▁resulted ▁in ▁a ▁very ▁strong ▁and ▁mus cular ▁neck . ▁Un iqu ely , ▁the ▁cer v ical ▁rib s ▁of ▁Maj ung as aur us ▁had ▁long ▁de press ions ▁along ▁the ▁sides ▁for ▁weight ▁reduction . ▁The ▁hum er us ▁( upper