A Nanotyrannus skeleton just sold for \$47.3m — should rare fossils be allowed in private hands at all?

The BBC reports the rare skeleton sold at a New York auction for \$47.3m, reigniting a long-running debate among palaeontologists about whether dinosaur remains belong in private collections or public museums. Nanotyrannus itself is scientifically contested, with researchers arguing for years over whether it's a separate species or a juvenile T. rex, which makes access for study even more important. Should there be rules that guarantee researchers access to privately sold fossils, or is that overreach?