This was on NOVA last nite on PBS. If you haven't seen it yet, catch it when it comes to public TV near you. Bone Diggers: An expedition into a cavern located in the Australian outback finds complete skeletons of the Thylacoleo, a marsupial lion that died out some 30,000 to 50,000 years ago; and the remains of a giant kangaroo. Absolutely great video.
