Recent research suggests that the many species belonging to this genus may be either be invalid or belong to the closely related Ganawamaya.[3]
Sources
^Flannery, Tim; Rich, Thomas H. V. (1986). "Macropodoids from the Middle Miocene Namba Formation, South Australia, and the homology of some dental structures in kangaroos". Journal of Paleontology. 60 (2): 418–447. Bibcode:1986JPal...60..418F. doi:10.1017/S0022336000021958. S2CID86029480.
^B.P. Kear; B.N. Cooke; M. Archer; T.F.Flannery (2007). Implications of a new species of the Oligo-Miocene kangaroo (Marsupialia: Macropodoidea) Nambaroo, from the Riversleigh World Heritage Area, Queensland, Australia, in Journal of Paleontology 81, pp. 1147-1167. (abstract)