▁H . ▁erg aster ▁spec im ens , ▁but ▁retain s ▁specific ▁morph ological ▁similar ities ▁that ▁more ▁closely ▁approximate ▁it ▁with ▁H . ▁erg aster ▁than ▁H . ▁hab ilis . ▁It ▁is ▁likely ▁that ▁due ▁to ▁the ▁suite ▁of ▁primitive ▁tra its ▁which ▁Sk ull ▁ 3 ▁displays , ▁the ▁population ▁may ▁have ▁been ▁fairly ▁closely ▁related ▁to ▁H . ▁hab ilis . ▁A ▁c ran ial ▁capacity ▁of ▁ 6 0 0 ▁cc ▁is ▁far ▁below ▁the ▁lower ▁threshold ▁for ▁H . ▁ere ct us , ▁falling ▁closer ▁to ▁H . ▁hab ilis ▁average . ▁However , ▁its ▁derived ▁fa cial ▁architecture ▁is ▁taken ▁into ▁account , ▁research ers ▁have ▁stated ▁it ▁looks ▁" more ▁like ▁a ▁small ▁H . ▁ere ct us ▁than ▁H . ▁hab ilis ." ▁ ▁Similar ities ▁with ▁H omo ▁hab ilis ▁▁ ▁Small ▁c ran ium ▁ ▁Lar ge ▁post g len oid ▁process ▁ ▁High ▁distance ▁ratio ▁of ▁lambda - in ion ▁to ▁in ion - op is th ion ▁ ▁Small ▁fa cial ▁form ▁ ▁W ide ▁nas al ▁a pert ure ▁ ▁D eg ree ▁of ▁post orb ital ▁con str iction ▁ ▁Similar ities ▁with ▁H omo ▁erg aster ▁▁ ▁Red u ction ▁of ▁the ▁ch in ▁ ▁Low , ▁s lop ing ▁c ran ial ▁walls ▁ ▁For ward ▁s lop ing ▁oc cip ital ▁ ▁Cur v ature ▁of ▁the ▁tempor om and ib ular ▁joint ▁ ▁Ang le ▁of ▁the ▁pet r ous ▁py ram id ▁