Australidelphia
| Australidelphia Temporal range: Early Paleocene to present[1]
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| A swamp wallaby | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Infraclass: | Marsupialia |
| Superorder: | Australidelphia Szalay 1982 |
| Orders | |
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Australidelphia is a superorder of marsupials encompassing about three-quarters of all living marsupial species, including all those native to Australasia and one South American species, the monito del monte. Unlike other American marsupials, which belong to the Ameridelphia, Australidelphia’s lineage emerged in South America, with genetic evidence (retrotransposon insertion sites) showing the monito del monte as its most ancient branch.[3][4]
The Australian members form a distinct group (clade) within this superorder, tentatively named Euaustralidelphia ("true Australidelphia"), though their internal relationships (branching order) is yet to be determined.[4] Studies suggest Australidelphia originated in South America alongside other major marsupial groups, likely dispersing to Australia via Antarctica in a single event after the monito’s lineage (Microbiotheria) diverged, leaving other South American orders (Didelphimorphia and Paucituberculata) as more basal.[3][4]
Phylogeny
[edit]Phylogeny of living Australidelphia based on the work of May-Collado, Kilpatrick & Agnarsson 2015[5] with extinct clades from Black et al. 2012[6]
| Australidelphia |
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(*)This clade has been called Agreodontia by other authors since 2014.
Taxonomy
[edit]The orders within this group are listed below:
- Genera †Djarthia Godthelp, Wroe & Archer 1999
- Order †Yalkaparidontia Archer, Hand & Godthelp 1988
- Family †Yalkaparidontidae Archer, Hand & Godthelp 1988
- ?Order Microbiotheria (1 species)
- ?Family Microbiotheriidae: monito del monte
- Order Dasyuromorphia (71 species)
- Family †Thylacinidae: thylacine
- Family Dasyuridae: antechinuses, quolls, dunnarts, Tasmanian devil, and allies
- Family Myrmecobiidae: numbat
- Order Peramelemorphia (21 species)
- Family Thylacomyidae: bilbies
- Family †Chaeropodidae: pig-footed bandicoots
- Family Peramelidae: bandicoots and allies
- Order Notoryctemorphia (2 species)
- Family Notoryctidae: marsupial moles
- Order Diprotodontia (117 species)
- Family Phascolarctidae: koala
- Family Vombatidae: wombats
- Family Phalangeridae: brushtail possums and cuscuses
- Family Burramyidae: pygmy possums
- Family Tarsipedidae: honey possum
- Family Petauridae: striped possum, Leadbeater's possum, yellow-bellied glider, sugar glider, mahogany glider, squirrel glider
- Family Pseudocheiridae: ringtailed possums and allies
- Family Potoridae: potoroos, rat kangaroos, bettongs
- Family Acrobatidae: feathertail glider and feather-tailed possum
- Family Hypsiprymnodontidae: musky rat-kangaroo
- Family Macropodidae: kangaroos, wallabies, and allies
- Family †Thylacoleonidae: marsupial lions
- Family †Palorchestidae: marsupial tapirs
- Family †Diprotodontidae: giant wombats
References
[edit]- ^ "PBDB". paleobiodb.org. Retrieved 2021-07-13.
- ^ a b Beck, R. M. D.; Travouillon, K. J.; Aplin, K. P.; Godthelp, H.; Archer, M. (2014). "The Osteology and Systematics of the Enigmatic Australian Oligo-Miocene Metatherian Yalkaparidon (Yalkaparidontidae; Yalkaparidontia; ?Australidelphia; Marsupialia)" (PDF). Journal of Mammalian Evolution. 21 (2): 127–172. doi:10.1007/s10914-013-9236-3. S2CID 18490996.
- ^ a b Schiewe, Jessie (2010-07-28). "Australia's marsupials originated in what is now South America, study says". Los Angeles Times. Archived from the original on 1 August 2010. Retrieved 2010-08-01.
- ^ a b c Nilsson, M. A.; Churakov, G.; Sommer, M.; Van Tran, N.; Zemann, A.; Brosius, J.; Schmitz, J. (2010-07-27). Penny, David (ed.). "Tracking Marsupial Evolution Using Archaic Genomic Retroposon Insertions". PLOS Biology. 8 (7): e1000436. doi:10.1371/journal.pbio.1000436. PMC 2910653. PMID 20668664.
- ^ May-Collado; et al. (2015). "Mammals from 'down under': a multi-gene species-level phylogeny of marsupial mammals (Mammalia, Metatheria)". PeerJ. 3 (e805): e805. doi:10.7717/peerj.805. PMC 4349131. PMID 25755933.
- ^ Black; et al. (2012). "The Rise of Australian Marsupials: A Synopsis of Biostratigraphic, Phylogenetic, Palaeoecologic and Palaeobiogeographic Understanding". Earth and Life. Springer Netherlands. pp. 983–1078. doi:10.1007/978-90-481-3428-1_35. ISBN 9789048134274.
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