Phascolarctos sulcomaxilliaris Travouillon et al., 2026
Dimpled koala
Taxonomy & Nomenclature
Conservation Status
Extinct (Travouillon et al., 2026)
Last record: Late Pleistocene (minimum 18ka or 24ka) (see Travouillon et al., 2026)
Distribution & Habitat
south-west Western Australia, Australia
Type locality: "Foundation Cave (AU-28), south of Margaret River, WA" (Travouillon et al., 2026)
Anatomy & Morphology
Biology & Ecology
Hypodigm
Holotype: WAM 99.10.3 (near complete but damaged skull and associated mandibles; probably female)
Media
References
Original scientific description:
Travouillon, Kenny J., Warburton, Natalie Marina, Thorn, Kailah Marie and Ryan, Helen. (2026). New fossil koala (Marsupialia: Phascolarctidae) from the Pleistocene of Western Australia. Royal Society Open Science 13(5): 251572. https://doi.org/10.1098/rsos.251572
Other references:
Archer, Michael. (1972). Phascolarctos (Marsupialia, Vombatoidea) and an associated fossil fauna from Koala Cave near Yanchep, Western Australia. Helictite 10(3): 49-59.
Travouillon, Kenny J., Jackson, Stephen, Beck, Robin M. D., Louys, Julien, Cramb, Jonathan, Gillespie, Anna, Black, Karen, Hand, Suzanne, Archer, Michael, Kear, Benjamin, Hocknull, Scott, Phillips, Matthew, McDowell, Matthew, Fitzgerald, Erich M. G., Brewer, Phillipa and Price, Gilbert J. (2026). Checklist of the Fossil Mammal Species of Australia and New Guinea. Available from: https://www.australasianpalaeontologists.com/national-fossil-species-lists [Accessed 7 September 2026]