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Argentine fat-tailed mouse opossum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Order: Didelphimorphia
Family: Didelphidae
Genus: Thylamys
Species:
T. sponsorius
Binomial name
Thylamys sponsorius
( Thomas, 1921)
Argentine fat-tailed mouse opossum range

The Argentine fat-tailed mouse opossum (Thylamys sponsorius) was formerly considered a species of opossum in the family Didelphidae. [2] It is found in the eastern foothills of the Andes in northern Argentina and southern Bolivia. [1] Typically reach around 10-13 cm (4-5 inches) in body length, with a bushy tail adding another 12-15 cm (5-6 inches). Its dorsal fur is gray brown to dark brown. Its ventral fur is gray-based except for the white to yellowish chest hairs. It has been distinguished from T. cinderella by its postorbital ridges. T. cinderella has well-developed postorbital ridges in both juveniles and adults that extend laterally behind the eye sockets. Only adults of T. sponsorius have fully developed postorbital ridges, and these do not extend laterally behind the eye sockets. [3] However, mitochondrial DNA sequence analysis does not support the population being distinct from T. cinderella. [4] [5]

References

  1. ^ a b Diaz M. & Barquez, R. (2008). "Thylamys sponsorius". IUCN Red List of Threatened Species. 2008. Archived from the original on 2016-07-08. Retrieved 20 March 2009.
  2. ^ Gardner, A.L. (2005). "Order Didelphimorphia". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 18. ISBN  978-0-8018-8221-0. OCLC  62265494.
  3. ^ Gardner, Alfred L. (2008). Mammals of South America: Marsupials, xenarthrans, shrews, and bats. University of Chicago Press. p. 669. ISBN  978-0-226-28240-4.
  4. ^ Flores, D. (2016). "Thylamys cinderella". IUCN Red List of Threatened Species. 2016: e.T51343307A22173237. doi: 10.2305/IUCN.UK.2016-2.RLTS.T51343307A22173237.en. Retrieved 26 December 2019.
  5. ^ Braun, J.K.; et al. (2005). "Phylogenetic and biogeographic relationships of mouse opossums Thylamys (Didelphimorphia, Didelphidae) in southern South America". Journal of Mammalogy. 86 (1): 147–159. doi: 10.1644/1545-1542(2005)086<0147:PABROM>2.0.CO;2.
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