Classification
About two-thirds of Australian marsupials belong to the order Diprotodontia, which is split into three suborders: the Vombatiformes (wombats and the koala, 4 species in total); the large and diverse Phalangeriformes (the possums and gliders) and Macropodiformes (kangaroos, potoroos, wallabies and the musky rat-kangaroo). Note: this classification is based on Ruedas & Morales 2005.
- Suborder Phalangeriformes: possums, gliders and allies
- Superfamily Phalangeroidea
- Family Burramyidae: pygmy possums
- Genus Burramys
- Mountain Pygmy Possum, Burramys parvus
- Genus Cercartetus
- Long-tailed Pygmy Possum, Cercartetus caudatus
- Southwestern Pygmy Possum, Cercartetus concinnus
- Tasmanian Pygmy Possum, Cercartetus lepidus
- Eastern Pygmy Possum, Cercartetus nanus
- Genus Burramys
- Family Phalangeridae: brushtail possums and cuscuses
- Subfamily Ailuropinae
- Genus Ailurops
- Talaud Bear Cuscus, Ailurops melanotis
- Sulawesi Bear Cuscus, Ailurops ursinus
- Genus Strigocuscus
- Sulawesi Dwarf Cuscus, Strigocuscus celebensis
- Banggai Cuscus, Strigocuscus pelegensis
- Genus Ailurops
- Subfamily Phalangerinae
- Tribe Phalangerini
- Genus Phalanger
- Gebe Cuscus, Phalanger alexandrae
- Mountain Cuscus, Phalanger carmelitae
- Ground Cuscus, Phalanger gymnotis
- Eastern Common Cuscus, Phalanger intercastellanus
- Woodlark Cuscus, Phalanger lullulae
- Blue-eyed Cuscus, Phalanger matabiru
- Telefomin Cuscus, Phalanger matanim
- Southern Common Cuscus, Phalanger mimicus
- Northern Common Cuscus, Phalanger orientalis
- Ornate Cuscus, Phalanger ornatus
- Rothschild's Cuscus, Phalanger rothschildi
- Silky Cuscus, Phalanger sericeus
- Stein's Cuscus, Phalanger vestitus
- Genus Spilocuscus
- Admiralty Island Cuscus, Spilocuscus kraemeri
- Common Spotted Cuscus, Spilocuscus maculatus
- Waigeou Cuscus, Spilocuscus papuensis
- Black-spotted Cuscus, Spilocuscus rufoniger
- Blue-eyed Spotted Cuscus, Spilocuscus wilsoni
- Genus Phalanger
- Tribe Trichosurini
- Genus Trichosurus
- Northern Brushtail Possum, Trichosurus arnhemensis
- Short-eared Possum, Trichosurus caninus
- Mountain Brushtail Possum, Trichosurus cunninghami
- Coppery Brushtail Possum, Trichosurus johnstonii
- Common Brushtail Possum, Trichosurus vulpecula
- Genus Wyulda
- Scaly-tailed Possum, Wyulda squamicaudata
- Genus Trichosurus
- Tribe Phalangerini
- Subfamily Ailuropinae
- Family Burramyidae: pygmy possums
- Superfamily Petauroidea
- Family Pseudocheiridae
- Subfamily Hemibelideinae
- Genus Hemibelideus
- Lemur-like Ringtail Possum, Hemibelideus lemuroides
- Genus Petauroides
- Greater Glider, Petauroides volans
- Genus Hemibelideus
- Subfamily Pseudocheirinae
- Genus Petropseudes
- Rock-haunting Ringtail Possum, Petropseudes dahli
- Genus Pseudocheirus
- Common Ringtail Possum, Pseudocheirus peregrinus
- Genus Pseudochirulus
- Lowland Ringtail Possum, Pseudochirulus canescens
- Weyland Ringtail Possum, Pseudochirulus caroli
- Cinereus Ringtail Possum, Pseudochirulus cinereus
- Painted Ringtail Possum, Pseudochirulus forbesi
- Herbert River Ringtail Possum, Pseudochirulus herbertensis
- Masked Ringtail Possum, Pseudochirulus larvatus
- Pygmy Ringtail Possum, Pseudochirulus mayeri
- Vogelkop Ringtail Possum, Pseudochirulus schlegeli
- Genus Petropseudes
- Subfamily Pseudochiropinae
- Genus Pseudochirops
- D'Albertis' Ringtail Possum, Pseudochirops albertisii
- Green Ringtail Possum, Pseudochirops archeri
- Plush-coated Ringtail Possum, Pseudochirops corinnae
- Reclusive Ringtail Possum, Pseudochirops coronatus
- Coppery Ringtail Possum, Pseudochirops cupreus
- Genus Pseudochirops
- Subfamily Hemibelideinae
- Family Petauridae
- Genus Dactylopsila
- Great-tailed Triok, Dactylopsila megalura
- Long-fingered Triok, Dactylopsila palpator
- Tate's Triok, Dactylopsila tatei
- Striped Possum, Dactylopsila trivirgata
- Genus Gymnobelideus
- Leadbeater's Possum, Gymnobelideus leadbeateri
- Genus Petaurus
- Northern Glider, Petaurus abidi
- Yellow-bellied Glider, Petaurus australis
- Biak Glider, Petaurus biacensis
- Sugar Glider, Petaurus breviceps
- Mahogany Glider, Petaurus gracilis
- Squirrel Glider, Petaurus norfolcensis
- Genus Dactylopsila
- Family Tarsipedidae
- Genus Tarsipes
- Honey Possum or Noolbenger, Tarsipes rostratus
- Genus Tarsipes
- Family Acrobatidae
- Genus Acrobates
- Feathertail Glider, Acrobates pygmaeus
- Genus Distoechurus
- Feather-tailed Possum, Distoechurus pennatus
- Genus Acrobates
- Family Pseudocheiridae
- Superfamily Phalangeroidea
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