as for the 20,000 fossils, i hope they find a dragon!!!
I pretty sure that they mythos of Dragons came from actual dinosaure discoveries made waay, waaaay back in the ancient times as they do bare a strong resemblence to one-another. But if you'r heavy into spirituality, then dragons as we know them in mythology, dwell in one of the ten levels of the underworld (and no I'm not talking about the made-up hell).
-X