Huayqueriana

Huayqueriana is an extinct genus of South American litoptern, related to Macrauchenia, and belonging to the same family, Macraucheniidae. It was formerly known as Macrauchenidia latidens, described in 1939 by Cabrera, but redefined as Huayqueriana in 2016 based on the earlier name convention of Rovereto 1914.^[1][2] The genus is named after the Huayquerías Formation and the eponymous Huayquerian South American land mammal age defined at the formation.

Huayqueriana Temporal range: Late Miocene (Huayquerian) ~9–7 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Litopterna
Family:	†Macraucheniidae
Subfamily:	†Macraucheniinae
Genus:	†Huayqueriana Rovereto 1914
Species:	†H. cristata
Binomial name
†Huayqueriana cristata Rovereto 1914
Synonyms
Macrauchenidia latidens Cabrera 1939 Huayqueria cristata Riggs and Patterson 1939 Promacrauchenia (Huayqueriana) cristata Kraglievich 1934

Classification

Cladogram based in the phylogenetic analysis published by Schmidt et al., 2014, showing the position of Huayqueriana:^[3]

	Proadiantus Tricoelodus Polymorphis Pternoconius Coniopternium Cramauchenia Theosodon Macraucheniinae Scalabrinitherium Oxyodontherium Huayqueriana Paranauchenia denticulata Paranauchenia hystatus Cullinia Promacrauchenia Windhausenia Xenorhinotherium Macraucheniopsis Macrauchenia