The brushtail possums are the members of the genus ''Trichosurus'' in the
Phalangeridae
The Phalangeridae are a family of mostly nocturnal marsupials native to Australia, New Guinea, and Eastern Indonesia, including the cuscuses, brushtail possums, and their close relatives. Considered a type of possum, most species are arboreal, ...
, a family of
marsupial
Marsupials are any members of the mammalian infraclass Marsupialia. All extant marsupials are endemic to Australasia, Wallacea and the Americas. A distinctive characteristic common to most of these species is that the young are carried in a po ...
s. They are native to
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
(including
Tasmania
)
, nickname =
, image_map = Tasmania in Australia.svg
, map_caption = Location of Tasmania in AustraliaCoordinates:
, subdivision_type = Country
, subdi ...
) and some small nearby islands. Unique among marsupials, they have shifted the
hypaxial
In adult vertebrates, trunk muscles can be broadly divided into hypaxial muscles, which lie ventral to the horizontal septum of the vertebrae and epaxial muscles, which lie dorsal to the septum. Hypaxial muscles include some vertebral muscles, the ...
muscles from the
epipubic
Epipubic bones are a pair of bones projecting forward from the pelvic bones of modern marsupials, monotremes and fossil mammals like multituberculates, and even basal eutherians (the ancestors of placental mammals, who lack them).
They first o ...
to the
pelvis
The pelvis (plural pelves or pelvises) is the lower part of the trunk, between the abdomen and the thighs (sometimes also called pelvic region), together with its embedded skeleton (sometimes also called bony pelvis, or pelvic skeleton).
The ...
, much like in
placental
Placental mammals (infraclass Placentalia ) are one of the three extant subdivisions of the class Mammalia, the other two being Monotremata and Marsupial
Marsupials are any members of the mammalian infraclass Marsupialia. All extant marsup ...
muscles, meaning that their
breathing
Breathing (or ventilation) is the process of moving air into and from the lungs to facilitate gas exchange with the internal environment, mostly to flush out carbon dioxide and bring in oxygen.
All aerobic creatures need oxygen for cellular ...
cycle is more similar to the latter than to that of other non-
eutheria
Eutheria (; from Greek , 'good, right' and , 'beast'; ) is the clade consisting of all therian mammals that are more closely related to placentals than to marsupials.
Eutherians are distinguished from noneutherians by various phenotypic tra ...
n mammals.
[Reilly SM, McElroy EJ, White TD, Biknevicius AR, Bennett MB, Abdominal muscle and epipubic bone function during locomotion in Australian possums: insights to basal mammalian conditions and Eutherian-like tendencies in Trichosurus, J Morphol. 2010 Apr;271(4):438-50. .] In general, they are more terrestrially oriented than other possums, and in some ways might parallel
primates
Primates are a diverse order of mammals. They are divided into the strepsirrhines, which include the lemurs, galagos, and lorisids, and the haplorhines, which include the tarsiers and the simians (monkeys and apes, the latter including huma ...
.
The genus contains these species:
*
Northern brushtail possum
The northern brushtail possum (''Trichosurus arnhemensis'') is a nocturnal marsupial inhabiting northern Australia. The northern brushtail possum is sometimes considered a species, however more often than not is considered a subspecies of the c ...
, ''T. arnhemensis''
*
Short-eared possum, ''T. caninus''
*
Mountain brushtail possum
The mountain brushtail possum, or southern bobuck (''Trichosurus cunninghami''), is a nocturnal, semi-arboreal marsupial of the family Phalangeridae native to southeastern Australia. It was not described as a separate species until 2002.
Taxon ...
, ''T. cunninghami''
*
Coppery brushtail possum, ''T. johnstonii''
*
Common brushtail possum
The common brushtail possum (''Trichosurus vulpecula'', from the Greek for "furry tailed" and the Latin for "little fox", previously in the genus ''Phalangista'') is a nocturnal, semiarboreal marsupial of the family Phalangeridae, native to Austr ...
, ''T. vulpecula''
Gallery
Northen brushtail possum.jpg, Northern brushtail possum (''T. arnhemensis'')
Trichosurus caninus Gould.jpg, Short-eared possum (''T. caninus'')
Coppery Brushtail Possum (3625102158).jpg, Coppery brushtail possum (''T. johnstonii'')
Brushtail Possum- Grampians National Park.jpg, Common brushtail possum (''T. vulpecula'')
References
Possums
Taxonomy articles created by Polbot
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