I don't know if they -easily- lived up to 70, but it was possible to live to that age for sure :) . death rate of "at birth" and early years was far far higher

I don't know if they -easily- lived up to 70, but it was possible to live to that age for sure :) . death rate of "at birth" and early years was far far higher than now. they certainly lived longer than 30-35 that I hear slung around though. If you lived to 15 or so you could easily live to 50-60. Although those early corpses almost always show infection by parasites and such and not so pretty healing from injuries.