The one-striped opossum (''Monodelphis unistriata'') is a possibly extinct

opossum Opossums () are members of the marsupial order Didelphimorphia () endemic to the Americas. The largest order of marsupials in the Western Hemisphere, it comprises 93 species in 18 genera. Opossums originated in South America and entered North ...

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

from South America. It is known only from two specimens found in Brazil in 1821 and

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...

in 1899.

References

Opossums Marsupials of South America Mammals of Argentina Mammals of Brazil Critically endangered animals Critically endangered biota of South America Mammals described in 1842 {{marsupial-stub