Quite right too, just because you paid some guy to buy their land shouldn't give you total control over any historical objects on that land.
Although these guys obviously wanted to make a quick buck and to hell with history.
Although these guys obviously wanted to make a quick buck and to hell with history.
If the human remains are of ancient Native American origin, then there may be other restrictions of what cane be done with the remains and any associated funerary objects.
Nor (in the US) do most people get to use birds, eggs, or even feathers of 1,000+ species of birds, even if found on their land, because of endangered species law (starting with the Migratory Bird Treaty Act of 1918).
And someone may have ownership rights to the land, but not mineral rights.
Therefore, land ownership clearly does not mean ownership and control of everything on the land.
You are entitled to fight in court, and if you lose, you get whatever the goverment feels right to pay for the land.
Without it, you couldn't build things like roads.