Naracoorte, where a half-million years of biodiversity and climate history are trapped in caves
(PHYSorg.com Archaeology & Fossils)

In 1857, guided by the flickering light of a candle deep in a cave at Naracoorte in South Australia, the Reverend Julian Tenison-Woods stumbled across thousands of tiny bones of rodents and small marsupials buried at the base of crystal columns.