Phascolarctidae

The Phascolarctidae (φάσκωλος (phaskolos) - pouch or bag, ἄρκτος (arktos) - bear, from the Greek phascolos + arctos meaning pouched bear) is a family of marsupials of the order Diprotodontia, consisting of only one extant species, the koala, and six well-known fossil species, with another six less well known fossil species, and two fossil species of the genus Koobor, whose taxonomy is debatable but are placed in this group. The closest relatives of the Phascolarctidae are the wombats, which comprise the family Vombatidae.

The fossil record of the family dates back to the Middle Miocene or Late Oligocene.

Classification
Family Phascolarctidae
 * Genus Nimiokoala
 * Nimiokoala greystanesi
 * Genus Invictokoala
 * Invictokoala monticola
 * Genus Madakoala
 * Madakoala robustus
 * Madakoala wellsi
 * Madakoala devisi
 * Genus Litokoala
 * Litokoala garyjohnstoni
 * Litokoala kutjamarpensis
 * Litokoala kanunkaensis
 * Genus Lumakoala
 * Lumakoala blackae
 * Genus Koobor
 * Koobor jimbarrati
 * Koobor notabilis
 * Genus Perikoala
 * Perikoala palankarinnica
 * Perikoala robustus
 * Genus Phascolarctos
 * Phascolarctos maris
 * Koala - Phascolarctos cinereus
 * Giant koala - Phascolarctos stirtoni
 * Phascolarctos yorkensis (formerly Cundokoala yorkensis)
 * Genus Priscakoala
 * Priscakoala lucyturnbullae