Marsupial 'Rhinoceros' fossil-lower jaw bone

The 300 kg Marsupial 'Rhinoceros' (Neohelos stirtoni) was one of the large, browsing herbivores that roamed parts of Australia some 12 million years ago, during the Miocene epoch. Well preserved fossilised bones from this, and other extinct species, are found at the Bullock Creek fossil deposit in the Northern Territory of Australia. Descendants of Neohelos stirtoni gradually became even larger in size, culminating in a species that grew to over 700kg. As humans dispersed across the world, these Megafaun species were hunted which may have played a major role in their extinction.