2 0 1 0 ▁Gregory ▁S . ▁Paul ▁gave ▁an ▁estimate ▁of ▁ ▁for ▁the ▁weight ▁with ▁a ▁length ▁of ▁. ▁A ▁b ip ed , ▁Pro com ps ogn ath us ▁had ▁long ▁h ind ▁legs , ▁short ▁arms , ▁large ▁cla wed ▁hands , ▁a ▁long ▁sl ender ▁sn out ▁with ▁many ▁small ▁teeth , ▁and ▁a ▁st iff ▁tail . ▁ ▁The ▁fem ur ▁discovered ▁for ▁the ▁type ▁spec imen ▁of ▁this ▁genus ▁measures ▁ 9 3 mm ▁and ▁the ▁tib ia , ▁ 1 1 2 mm . ▁The ▁tib ia ▁is ▁approximately ▁ 2 0 % ▁longer ▁than ▁the ▁fem ur ▁in ▁Pro com ps ogn ath us , ▁an ▁adaptation ▁which ▁has ▁been ▁strongly ▁correl ated ▁with ▁the ▁development ▁of ▁cursor ial ▁hab its ▁in ▁din osa urs , ▁suggesting ▁that ▁they ▁were ▁good ▁run ners . ▁ ▁Dist ingu ishing ▁an atom ical ▁features ▁A ▁diagn osis ▁is ▁a ▁statement ▁of ▁the ▁an atom ical ▁features ▁of ▁an ▁organ ism ▁( or ▁group ) ▁that ▁collect ively ▁distinguish ▁it ▁from ▁all ▁other ▁organ isms . ▁Some , ▁but ▁not ▁all , ▁of ▁the ▁features ▁in ▁a ▁diagn osis ▁are ▁also ▁aut ap omorph ies . ▁ ▁An ▁aut ap omorph y ▁is ▁a ▁distinct ive ▁an atom ical ▁feature ▁that ▁is ▁unique ▁to ▁a ▁given ▁organ ism ▁or ▁group . ▁In ▁ 2 0 0 0 , ▁R au h ut ▁noted ▁that ▁its ▁sc ap ula ▁is ▁more ▁sl ender ▁than ▁that ▁of ▁Co el