Deuterotherium

Deuterotherium; Temporal range: Oligocene (Deseadan); ~29–21 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Notoungulata
Family:	†Notohippidae
Genus:	†Deuterotherium; Ameghino 1895
Species:	†D. distichum
Binomial name
	†Deuterotherium distichum; Ameghino 1895

Deuterotherium is an extinct genus of South American native ungulates, which lived during the Deseadan age of the Oligocene in what is now Argentina. Its type species is Deuterotherium distichum.^[1] It was named by Florentino Ameghino in 1895.^[1] The holotype of Deuterotherium distichum is a calcaneum.^[2] It was formerly identified as a proterotheriid litoptern.^[1] In 1999, Shockey argued Deuterotherium was certainly not a litoptern and interpreted it as a notohippid notoungulate.^[2] In research by Soria posthumously^[2] published in 2001, Soria considered Deuterotherium a nomen dubium.^[3]

References

^ ^a ^b ^c Palmer, T. S. (1904), Index generum mammalium: a list of the genera and families of mammals
^ ^a ^b ^c Shockey, Bruce J. (1999). "Postcranial Osteology and Functional Morphology of the Litopterna of Salla, Bolivia (Late Oligocene)". Journal of Vertebrate Paleontology. 19 (2): 383–390. Bibcode:1999JVPal..19..383S. doi:10.1080/02724634.1999.10011149. JSTOR 4523998.
^ Soria, Miguel F. (2001), Los Proterotheriidae (Mammalia; Litopterna), sistemática, origen y filogenia, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" e Instituto Nacional de Investigación de la Ciencias Naturales