Nambaroo gillespieae (N. tarrinyeri Flannery & Rich, 1986; Kear et al. 2007; Late Oligocene, 25 mya) was reported to be the “granddaddy of kangaroos” and to have had fangs, ‘probably for display,’ and mostly ate soft food such as fruit and fungi (Kear 2007). It was found in Australia. The short rostrum suggests a long soft trunk or nose. The very long tibia ends in a very kangaroo-like pes.

Procoptodon goliah (Owen 1873, extant, 2m tall; Pleistocene) is the extinct short-face kangaroo. The skull was very much like that of its ancestor, Interatherium.

Cuvier G 1822. Recherches sur les Ossemens Fossiles (Nourvelle Edition) Voume 2 paert 1. Chez G. Dufour et E. D'Ocagne, Paris, France.

Holbrook LT 2009. Osteology of Lophiodon Cuvier, 1822 (Mammalia, Perissodactyla) and Its Phylogenetic Implications. Journal of Vertebrate Paleontology 29(1): 212-230.

Flannery TF and Rich TH 1986. Macropodoids from the middle Miocene Namba Formatiion, South Australia, and the homology of some dental structures in kangaroos. Journal of Paleontology 60:418-447.

Kear BP, Cooke BN, Archer M and Flannery TF 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 81:1147-1167.

Owen R 1873. Procoptodon goliah, Owen. Proceedings of the Royal Society of London 21, 387.

wiki/Procoptodon
wiki/Nambaroo