# Phalangeriformes

Phalangeriformes /fəˈlændʒərɪfɔːrmiːz/ is a paraphyletic suborder of about 70 species of small to medium-sized arboreal marsupials native to Australia, New Guinea, and Sulawesi. The species are commonly known as possums, opossums, gliders, and cuscus. The common name "(o)possum" for various Phalangeriformes species derives from the creatures' resemblance to the opossums of the Americas (the term comes from Powhatan language aposoum "white animal", from Proto-Algonquian *wa·p-aʔɬemwa "white dog"). However, although opossums are also marsupials, Australasian possums are more closely related to other Australasian marsupials such as kangaroos.
Phalangeriformes are quadrupedal diprotodont marsupials with long tails. The smallest species, indeed the smallest diprotodont marsupial, is the Tasmanian pygmy possum, with an adult head-body length of 70 mm (2+3⁄4 in) and a weight of 10 g (3⁄8 oz). The largest are the two species of bear cuscus, which may exceed 7 kg (15 lb 7 oz). Phalangeriformes species are typically nocturnal and at least partially arboreal. They inhabit most vegetated habitats, and several species have adjusted well to urban settings. Diets range from generalist herbivores or omnivores (the common brushtail possum) to specialist browsers of eucalyptus (greater glider), insectivores (mountain pygmy possum) and nectar-feeders (honey possum).

## Classification

About two-thirds of Australian marsupials belong to the order Diprotodontia, which is split into three suborders, namely the Vombatiformes (wombats and the koala, four 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. However, Phalangeriformes has been recovered as paraphyletic with respect to Macropodiformes, rendering the latter a subset of the former if Phalangeriformes are to be considered a natural group.
* Suborder Phalangeriformes: possums, gliders and allies
** Superfamily Phalangeroidea
*** Family †Ektopodontidae:
**** Genus †Ektopodon
***** †Ektopodon serratus
***** †Ektopodon stirtoni
***** †Ektopodon ulta
*** Family Burramyidae: (pygmy possums)
**** Genus Burramys
***** Mountain pygmy possum, B. parvus
**** Genus Cercartetus
***** Long-tailed pygmy possum, C. caudatus
***** Southwestern pygmy possum, C. concinnus
***** Tasmanian pygmy possum, C. lepidus
***** Eastern pygmy possum, C. nanus
*** Family Phalangeridae: (brushtail possums and cuscuses)
**** Subfamily Ailuropinae
***** Genus Ailurops
****** Talaud bear cuscus, A. melanotis
****** Sulawesi bear cuscus, A. ursinus
***** Genus Strigocuscus
****** Sulawesi dwarf cuscus, S. celebensis
****** Banggai cuscus, S. pelegensis
**** Subfamily Phalangerinae
***** Tribe Phalangerini
****** Genus Phalanger
******* Gebe cuscus, P. alexandrae
******* Mountain cuscus, P. carmelitae
******* Ground cuscus, P. gymnotis
******* Eastern common cuscus, P. intercastellanus
******* Woodlark cuscus, P. lullulae
******* Blue-eyed cuscus, P. matabiru
******* Telefomin cuscus, P. matanim
******* Southern common cuscus, P. mimicus
******* Northern common cuscus, P. orientalis
******* Ornate cuscus, P. ornatus
******* Rothschild's cuscus, P. rothschildi
******* Silky cuscus, P. sericeus
******* Stein's cuscus, P. vestitus
****** Genus Spilocuscus
******* Admiralty Island cuscus, S. kraemeri
******* Common spotted cuscus, S. maculatus
******* Waigeou cuscus, S. papuensis
******* Black-spotted cuscus, S. rufoniger
******* Blue-eyed spotted cuscus, S. wilsoni
***** Tribe Trichosurini
****** Genus Trichosurus
******* Northern brushtail possum, T. arnhemensis
******* Short-eared possum, T. caninus
******* Mountain brushtail possum, T. cunninghami
******* Coppery brushtail possum, T. johnstonii
******* Common brushtail possum, T. vulpecula
****** Genus Wyulda
******* Scaly-tailed possum, W. squamicaudata
** Superfamily Petauroidea
*** Family Pseudocheiridae: (ring-tailed possums and allies)
**** Subfamily Hemibelideinae
***** Genus Hemibelideus
****** Lemur-like ringtail possum, H. lemuroides
***** Genus Petauroides
****** Central greater glider, P. armillatus
****** Northern greater glider, P. minor
****** Southern greater glider, P. volans
**** Subfamily Pseudocheirinae
***** Genus Petropseudes
****** Rock-haunting ringtail possum, P. dahli
***** Genus Pseudocheirus
****** Common ringtail possum, P. peregrinus
***** Genus Pseudochirulus
****** Lowland ringtail possum, P. canescens
****** Weyland ringtail possum, P. caroli
****** Cinereus ringtail possum, P. cinereus
****** Painted ringtail possum, P. forbesi
****** Herbert River ringtail possum, P. herbertensis
****** Masked ringtail possum, P. larvatus
****** Pygmy ringtail possum, P. mayeri
****** Vogelkop ringtail possum, P. schlegeli
**** Subfamily Pseudochiropsinae
***** Genus Pseudochirops
****** D'Albertis' ringtail possum, P. albertisii
****** Green ringtail possum, P. archeri
****** Plush-coated ringtail possum, P. corinnae
****** Reclusive ringtail possum, P. coronatus
****** Coppery ringtail possum, P. cupreus
*** Family Petauridae: (striped possum, Leadbeater's possum, yellow-bellied glider, sugar glider, mahogany glider, squirrel glider)
**** Genus Dactylopsila
***** Great-tailed triok, D. megalura
***** Long-fingered triok, D. palpator
***** Tate's triok, D. tatei
***** Striped possum, D. trivirgata
**** Genus Gymnobelideus
***** Leadbeater's possum, G. leadbeateri
**** Genus Petaurus
***** Northern glider, P. abidi
***** Savanna glider, P. ariel
***** Yellow-bellied glider, P. australis
***** Biak glider, P. biacensis
***** Sugar glider, P. breviceps
***** Mahogany glider, P. gracilis
***** Squirrel glider, P. norfolcensis
***** Krefft's glider, P. notatus
*** Family Tarsipedidae: (honey possum)
**** Genus Tarsipes
***** Honey possum or noolbenger, T. rostratus
*** Family Acrobatidae: (feathertail glider and feather-tailed possum)
**** Genus Acrobates
***** Feathertail glider, A. pygmaeus
**** Genus Distoechurus
***** Feather-tailed possum, D. pennatus