''Huayqueriana'' is an extinct

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

of South American

litoptern Litopterna (from grc, λῑτή πτέρνα "smooth heel") is an extinct order of fossil hoofed mammals from the Cenozoic era. The order is one of the five great orders of South American ungulates that were endemic to the continent, until th ...

, related to ''

Macrauchenia ''Macrauchenia'' ("long llama", based on the now-invalid llama genus, ''Auchenia'', from Greek "big neck") was a large, long-necked and long-limbed, three-toed native South American mammal in the order Litopterna. The genus gives its name to its ...

'', and belonging to the same family,

Macraucheniidae Macraucheniidae is a family in the extinct South American ungulate order Litopterna, that resembled various camelids. The reduced nasal bones of their skulls was originally suggested to have housed a small proboscis, similar to that of the sai ...

. 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.Forasiepi et al., 2016, p.11Cabrera (A.), 1939. Sobre vertebrados fósiles del Plioceno del Adolfo Alsina. ''Revista Museo de La Plata'', II (n. Serie), Paleont.: 3-35. The genus is named after the Huayquerías Formation and the eponymous

Huayquerian The Huayquerian ( es, Huayqueriense) age is a period of geologic time (9.0–6.8 Ma) within the Late Miocene epoch of the Neogene, used more specifically within the SALMA classification. It follows the Mayoan The Mayoan ( es, Mayoense) age is ...

South American land mammal age The South American land mammal ages (SALMA) establish a geologic timescale for prehistoric South American fauna beginning 64.5 Ma during the Paleocene and continuing through to the Late Pleistocene (0.011 Ma). These periods are referred to as age ...

defined at the formation.

Classification

Cladogram A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to ...

based in the

phylogenetic analysis In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups o ...

published by Schmidt ''et al''., 2014, showing the position of ''Huayqueriana'':

References

Bibliography

* Macraucheniids Miocene mammals of South America Neogene Argentina Fossils of Argentina Cerro Azul Formation Fossil taxa described in 1914 Prehistoric placental genera {{Paleo-mammal-stub