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The cleavage stages of marsupial development are very variable between groups and aspects of marsupial early development are not yet fully understood. An infant marsupial is known as a joey . Marsupials have a very short gestation period—usually between 12.5 and 33 days, [ 41 ] but as low as 10.7 days in the case of the stripe-faced dunnart ...
This list of fictional marsupials is subsidiary to the list of fictional animals and is a collection of various notable marsupial characters that appear in various works of fiction. It is limited to well-referenced examples in literature , film , television , comics , animation , video games and legends .
All extant marsupials are endemic to Australasia and the Americas. A distinctive characteristic common to most of these species is that the young are carried in a pouch. Well-known marsupials include kangaroos, wallabies, koalas, opossums, wombats, Tasmanian devils, and the extinct thylacine.
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The latter subclass is divided into two infraclasses: pouched mammals (metatherians or marsupials), and placental mammals (eutherians, for which see List of placental mammals). Classification updated from Wilson and Reeder's "Mammal Species of the World: A Taxonomic and Geographic Reference" using the "Planet Mammifères" website.
Analysis of retrotransposon insertion sites in the nuclear DNA of a variety of marsupials has shown that the South American monito del monte's lineage is the most basal of the superorder. [ 3 ] [ 4 ] The Australian australidelphians form a clade , for which the name Euaustralidelphia ("true Australidelphia") has been proposed (the branching ...
Common name Scientific name IUCN Red List status Trend Global population estimate (year) Population notes Range Image Common wombat: Vombatus ursinus: LC >915,090 (2020) [1]: Only includes subpopulations from three islands (Maria, Flinders, and Tasmania) of two subspecies (V. u. ursinus and V. u. tasmaniensis).
Modern marsupials are now understood to be an originally South American lineage that later reached Australia and diversified there in a massive adaptive radiation. [1] [2] Molecular data, including analysis of retrotransposon insertion sites in the nuclear DNA of a variety of marsupials, and the fossil evidence indicate that Ameridelphia might best be understood as an evolutionary grade.