''Fiandraia'' is an

extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...

monotypic genus of notoungulate that lived in Uruguay during the

Oligocene The Oligocene ( ) is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that define the epoch are well identified but the ...

and the Early Miocene. It was found in the

Fray Bentos Formation Fray or Frays or The Fray may refer to: Arts, entertainment, and media Fictional entities *Fray, a phenomenon in Terry Pratchett's ''The Carpet People'' *Fray, the main character in the video games: **''Fray in Magical Adventure'' **''Fray CD'' ...

, in rocks dated back from the

Deseadan The Deseadan ( es, Deseadense) age is a period of geologic time (29.0–21.0 Ma) within the Oligocene epoch of the Paleogene to the Early Miocene epoch of the Neogene, used more specifically within the SALMA classification of South America. It fo ...

period. The taxonomic status of ''Fiandraia'' has been historically disputed; in 1976, its discoverer, Roselli, assigned it in the family

Mesotheriidae Mesotheriidae ("Middle Beasts") is an extinct family of notoungulate mammals known from the Oligocene through the Pleistocene of South America. Mesotheriids were small to medium-sized herbivorous mammals adapted for digging. Characteristics Meso ...

; in 1978, in Mones & Ubilla, it was considered part of

Interatheriidae Interatheriidae is an extinct family of notoungulate mammals from South America. Interatheriids are known from the Middle Eocene (Mustersan) to the Early Pliocene (Montehermosan).McKenna & Bell, 1997Linares, 2004 These animals were principally sm ...

; McKenna & Bell, in 1997, placed it inside its own family, Fiandraiinae, itself part of

; Flynn ''et al'' considered it, in 2005, as a member of the Toxodontidae instead of the

Mesotheriinae Mesotheriidae ("Middle Beasts") is an extinct family of notoungulate mammals known from the Oligocene through the Pleistocene of South America. Mesotheriids were small to medium-sized herbivorous mammals adapted for digging. Characteristics M ...

References

Notoungulates Prehistoric placental genera Oligocene mammals of South America Miocene mammals of South America Deseadan Fossils of Uruguay Fossil taxa described in 1976 {{Paleo-mammal-stub