I wasn't being dismissive, just inquisitive. Are denser bones able to preserve DNA better from decay? We don't typically need DNA to be able to tell the sex of

I wasn't being dismissive, just inquisitive. Are denser bones able to preserve DNA better from decay? We don't typically need DNA to be able to tell the sex of a fossil skeleton, the size and shape of the fossils alone give that away. Perhaps it is the case that the bones themselves survive better as fossils as a result of the added density. But then, I'm also curious about the conditions necessary for a fossil to be preserved at all, as the vast majority of dead creatures gets reabsorbed indistinguishably back into the soil.