It is known from two species, W. encorensis from the Late Miocene Riversleigh site in Queensland,[1] and W. wakefieldi known from the Pleistocene of South Australia, New South Wales,[2] and Victoria.

[3] The two species are primarily distinguished by features of their enamel.

[3][2][4][5][6] Warendja wakefieldi is estimated to have weighed about 10 kg, considerably smaller than living wombats.

[7] Warendja thought to be relatively basal amongst wombats,[8] being the most primitive member to possess hypselodont (high crowned) cheek teeth.

The morphology of the humerus of W. wakefieldi suggests that it engaged in scratch-digging.