Jūjin

Hamura, child of Kaguya, the progenitor of chakra, and brother of Hagoromo the sage of six paths gave rise to an unknown clan that carried his kekkei genkai, referred to in modern times as the ultimate bloodline. Gradually through the centuries Hamura's blood thinned. The first branching yielded two clans: the Hyuugas and an unnamed clan, whose members possessed the Jūjin kekkei genkai. Members of this clan were capable of utilizing sennin transformations and dead bone pulse style techniques. They were a savage clan full of blood-lust, not quite as psychotic as Juugo's unnamed clan, but far more bloodthirsty than the Kaguya clan. Similarly they were systematically wiped out during an age spanning a century of constant warfare sometime before the shinobi war torn era.