Paranormal Creature

This (dog-headed pouched-dog) is a large carnivorous marsupial now believed to be extinct. At one time it was widespread over continental Australia, extending north to New Guinea and south to Tasmania. In recent times it was confined to Tasmania where its presence has not been established conclusively for more than seventy years. In Tasmania the species was best known from the north and east coast and midland plains region rather than from the mountains of the south-west. Do you know what creature it is?