▁here ▁or ▁at ▁G ona , ▁even ▁though ▁A . ▁gar hi ▁is ▁currently ▁the ▁only ▁recognized ▁hom in id ▁[ h omin in ] ▁tax on ▁recovered ▁from ▁H ata ▁sed iments ." ▁ ▁Ex istence ▁of ▁stone ▁tools ▁is ▁also ▁ev iden ced ▁by ▁b ones ▁of ▁large ▁m amm als — such ▁as ▁al cel aph inae ▁( W ilde be est ▁related ▁b ov ids ) ▁and ▁Hi pp ar ion , ▁an ▁ext inct ▁genus ▁of ▁three - to ed ▁horse — that ▁show ▁but ch ery ▁cut ▁marks ▁by ▁hom in ins ▁including ▁those ▁made ▁in ▁removing ▁an ▁animal ' s ▁tongue . ▁ ▁" Th ese ▁are ▁the ▁earliest ▁documented ▁per cussion ▁marks ▁made ▁by ▁hom in ids ▁[ h omin ins ], ▁who ▁were ▁pres umably ▁processing ▁these ▁b ones ▁for ▁contained ▁fat ty ▁mar row "; ▁and , ▁" Th ese ▁are ▁the ▁earliest ▁documented ▁cut ▁marks ▁made ▁by ▁hom in ids ▁[ h omin ins ] ." ▁ ▁As ▁concluded ▁by ▁the ▁exc av ators , ▁the ▁evidence ▁from ▁the ▁site ▁shows ▁" .. a ▁major ▁function ▁of ▁the ▁earliest ▁known ▁tools ▁was ▁meat ▁and ▁mar row ▁processing ▁of ▁large ▁car c ass es ." ▁This ▁pattern ▁of ▁but ch ery ▁processing ▁of ▁large ▁pre y ▁was ▁maintained ▁by ▁hom in ins ▁well ▁into ▁the ▁P li oc ene . ▁ ▁Dak ani hy lo ▁The ▁Dak ani hy lo ▁( D aka ) ▁layer ▁is ▁ 2 2 ▁to ▁ 4 5