

Lawn Hill, Queensland
We arose early and took the tour to Riversleigh D Site - Mammal fossils. This area was an inland waterway about 25 million years ago. Due to the limey mud, it's very good at preserving bones. Once you know what you are looking for, they are everywhere! Giant birds, bigger than an emu, freshwater crocs 7m long, large snapping turtles, relatives of which still exist somewhere. Stomatolite fossils, the cyanobacteria that first made oxygen.
Behind the limestone...