Diprotodon is an extinct genus of marsupial from the Pleistocene of Australia containing one species, D. optatum. The earliest finds date to 1.77 million to 780,000 years ago but most specimens are dated to after 110,000 years ago. Its remains were first unearthed in 1830 in Wellington Caves, New South Wales, and contemporaneous paleontologists guessed they belonged to rhinos, elephants, hippos or dugongs. Diprotodon was formally described by English naturalist Richard Owen in 1838, and was the first named Australian fossil mammal, and led Owen to become the foremost authority of his time on other marsupials and Australian megafauna, which were enigmatic to European science.
Wombats are short-legged, muscular quadrupedal marsupials of the family Vombatidae that are native to Australia. Living species are about 1 m (40 in) in length with small, stubby tails and weigh between 20 and 35 kg. They are adaptable and habitat tolerant, and are found in forested, mountainous, and heathland areas of southern and eastern Australia, including Tasmania, as well as an isolated patch of about 300 ha in Epping Forest National Park in central Queensland.
The order Peramelemorphia includes the bandicoots and bilbies. All members of the order are endemic to Australia-New Guinea and most have the characteristic bandicoot shape: a plump, arch-backed body with a long, delicately tapering snout, very large upright ears, relatively long, thin legs, and a thin tail. Their size varies from about 140 grams up to 4 kilograms, but most species are about one kilogram.
Phascolarctos is a genus of marsupials with one extant species, the koala Phascolarctos cinereus, an iconic animal of Australia. Several extinct species of the genus are known from fossil material, these were also large tree dwellers that browsed on Eucalyptus leaves.
Thylacoleo is an extinct genus of carnivorous marsupials that lived in Australia from the late Pliocene to the Late Pleistocene, often known as marsupial lions. They were the largest and last members of the family Thylacoleonidae, occupying the position of apex predator within Australian ecosystems. The largest and last species, Thylacoleo carnifex approached the weight of a lioness. The estimated average weight for the species ranges from 101 to 130 kg.
The southern hairy-nosed wombat is one of three extant species of wombats. It is found in scattered areas of semiarid scrub and mallee from the eastern Nullarbor Plain to the New South Wales border area. It is the smallest of all three wombat species. The young often do not survive dry seasons. It is the state animal of South Australia.
Perameles is a genus of marsupials of the order Peramelemorphia. They are referred to as long-nosed bandicoots or barred bandicoots.
Lycorhinus is a genus of heterodontosaurid ornithischian dinosaur from the Early Jurassic strata of the Elliot Formation located in the Cape Province, South Africa.
Quinkana is an extinct genus of mekosuchine crocodylians that lived in Australia from about 28 million to about 10,000 years ago. Most attributed specimens have been found in Queensland. It is speculated to have been one of the top predators of Pleistocene Australia.
Palorchestes is an extinct genus of large terrestrial, herbivorous Australian marsupial of the family Palorchestidae, living from the Miocene through to the Late Pleistocene. Like other palorchestids, it had highly retracted nasal region suggesting that it had a prehensile lip, as well as highly unusual clawed forelimbs that were used to grasp vegetation.
Paludirex is an extinct genus of mekosuchine crocodylian from the Pliocene and Pleistocene of Australia. A large and robust semi-aquatic ambush hunter capable of attaining lengths of up to 5 m (16 ft), it was likely the top predator of Australia's waterways prior to the appearance of modern saltwater crocodiles. Two species are known, the smaller Paludirex gracilis and the larger Paludirex vincenti. A third as of yet unnamed species may have also existed.
Phascolonus is an extinct genus of giant wombat known from the Pliocene and Pleistocene of Australia. There is only a single known species, Phascolonus gigas, the largest wombat ever known to have existed, estimated to weigh as much as 200 kg or 360 kg (790 lb). It was described by Richard Owen in 1859. Phascolomys magnus is a probable junior synonym. P. gigas is distinguished from other wombats by its strap-shaped upper incisors. The cranial roof is noticeably inwardly depressed. The species was abundant across Australia, with remains having been found in all states except Western Australia. It is suggested to have had a preference for arid and semi-arid inland habitats, with a diet consisting of a high amount of low quality vegetation. Though it likely had wide home-ranges, it probably did not stray far from fresh water sources. Abundant remains have been found in Pleistocene aged deposits from Lake Callabonna in South Australia. Unlike its living relatives, it is unlikely that Phascolonus engaged in burrowing. Phascolonus disappeared during the Late Pleistocene Quaternary extinction event around 50-40,000 years ago, together with many other large Australian animals, following the arrival of humans to the Australian continent. Phylogenetic analysis suggests that is closely related to the other giant wombat genera Ramsayia and Sedophascolomys.
Perameles bowensis is an extinct Pliocene-aged species of bandicoot. Fossils have been found in the Wellington Caves of New South Wales. The bandicoot was about 20 centimeters long. It is believed to have gone extinct in the Late Pliocene.
Lasiorhinus is the genus containing the two extant hairy-nosed wombats, which are found in Australia. The southern hairy-nosed wombat is found in some of the semiarid to arid regions belt from New South Wales southwest to the South Australia-Western Australia border. The IUCN categorises it as Near Threatened. Conversely, the northern hairy-nosed wombat is categorised as Critically Endangered and only survives in a 3-square-kilometre (1.2 sq mi) range within the Epping Forest National Park in Queensland, but formerly also existed in Victoria and New South Wales.
Warendja is an extinct genus of wombat. It is known from two species, W. encorensis from the Late Miocene Riversleigh site in Queensland, and W. wakefieldi known from the Pleistocene of South Australia, New South Wales, and Victoria. The two species are primarily distinguished by features of their enamel. It became extinct as part of the Quaternary extinction event. Warendja wakefieldi is estimated to have weighed about 10 kg, considerably smaller than living wombats. Warendja thought to be relatively basal amongst wombats, being the most primitive member to possess hypselodont cheek teeth. The morphology of the humerus of W. wakefieldi suggests that it engaged in scratch-digging.
Ramsayia is an extinct genus of giant wombat, weighing around 100 kg. Ramsayia is known from two species, Ramsayia lemleyi from the Pliocene of Queensland, and Ramsayia magna from the Pliocene to Late Pleistocene of Queensland and New South Wales. The skull superficially resembles that of the giant beavers Castoroides and Trogontherium. The large premaxillary spine suggests it possessed a large fleshy nose. The shape of the skull of R. magna suggests that it did not engage in burrowing. Cladistic analysis suggests that it is closely related to the other giant wombat genera Phascolonus and Sedophascolomys. Like other giant wombats, its size is thought to have been adaption to feeding on large amounts of low quality vegetation. The only certain date of Ramsayia magna dates to the early Late Pleistocene, around 80,000 years ago, making the timing of its extinction uncertain.
Propleopus is an extinct genus of marsupials. Three species are known: P. chillagoensis from the Plio-Pleistocene, and P. oscillans and P. wellingtonensis from the Pleistocene. In contrast to most other kangaroos, and similar to their small extant relative, the musky rat-kangaroo, they were probably omnivorous.
Lestobradys is an extinct genus of ground sloth, which existed in Uruguay during the Late Miocene period; Huayquerian in the South American land mammal age (SALMA). The type species is L. sprechmanni, found in the Camacho Formation of Uruguay.
Macropus pan is a species of marsupial that existed during the Pliocene in Australia, known only from fossils located at several sites across Australia. The species is recognised as allied to the modern grey kangaroos, the western Macropus fuliginosus and eastern Macropus giganteus, in a clade initially named as subgenus Macropus (Macropus) Dawson & Flannery. The first description was provided by Charles W. De Vis in 1895, emerging from the author's examination of fossil material held at the Queensland Museum. Fossil specimens of Quanbun local fauna, named for a site in Western Australia, were also identified as this species. The origin of the type specimen was not recorded, although based on comparisons to material with a known provenance it is assumed to have excavated at Chinchilla, Queensland. A larger macropod than any modern species, the standing height was estimated to be over two metres.
Sedophascolomys is an extinct genus of wombat known from the Pliocene and Pleistocene of Australia. There is a single recognised species, S. medius, which was formerly placed in the invalid genus Phascolomys. It was found in the northeastern and eastern regions of the continent. It is estimated to be somewhat larger than extant wombats, with a body mass of 70–75 kilograms (154–165 lb). The youngest remains of the genus date to the Late Pleistocene, around 50–40,000 years ago. It is thought to be closely related to the giant wombat genera Phascolonus and Ramsayia.
