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Chinchilla rats Temporal range: Late Miocene–Recent PreꞒ Ꞓ O S D C P T J K Pg N

Abrocoma bennettii
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Rodentia
Parvorder:	Caviomorpha
Family:	Abrocomidae Miller and Gidley, 1918
Type genus
Abrocoma Waterhouse, 1837
Genera
Abrocoma Cuscomys †Protabrocoma

Chinchilla rats or chinchillones are rodents of the family Abrocomidae. This family has few members compared to most rodent families, with only nine known living species. They resemble chinchillas in appearance, with a similar soft fur and silvery-grey color, but have a body structure more like a short-tailed rat. They are social, tunnel-dwelling animals, and live in the Andes Mountains of South America. They are probably herbivorous, although this is not clear.^[1]

They can be described as medium-sized. Stiff hairs project over the three middle digits of the rear feet. Their massive skulls narrow in the facial areas.^[2] Some molecular work^[3] suggests that, despite their appearance, they may be more closely related to octodontoids such as degus, nutria, and tuco-tucos than they are to chinchillas and viscachas.

Etymology

The family name is derived from the Ancient Greek word ἁβροκόμης (habrokomēs, "with delicate hair"). The word ἁβρός (habros) means "delicate, graceful" and the word κόμη (komē) means "hair".

Species

Family Abrocomidae - chinchilla rats
- †Protabrocoma
  - †Protabrocoma antigua
- Abrocoma
  - A. bennettii - Bennett's chinchilla rat
  - A. boliviensis - Bolivian chinchilla rat
  - A. budini - Budin's chinchilla rat
  - A. cinerea - ashy chinchilla rat
  - A. famatina - Famatina chinchilla rat
  - A. schistacea - Sierra del Tontal chinchilla rat
  - A. uspallata - Uspallata chinchilla rat
  - A. vaccarum - Punta de Vacas chinchilla rat or Mendozan chinchilla rat
- Cuscomys
  - C. ashaninka - Asháninka arboreal chinchilla rat
  - C. oblativus - Machu Picchu arboreal chinchilla rat

References

Citations

^ Bishop, Ian (1984). Macdonald, D. (ed.). The Encyclopedia of Mammals. New York: Facts on File. p. 701. ISBN 0-87196-871-1.
^ Allaby, Michael. The Concise Oxford Dictionary of Zoology. pg 1. Oxford University Press. New York. 1992.
^ Huchon, D. and E. J. P. Douzery (2001). "From the Old World to the New World: a molecular chronicle of the phylogeny and biogeography of hystricognath rodents". Molecular Phylogenetics and Evolution. 20 (2): 238–251. doi:10.1006/mpev.2001.0961. PMID 11476632.

Bibliography

Braun, J. K. and M. A. Mares. 2002. Systematics of the Abrocoma cinerea species complex (Rodentia: Abrocomidae), with a description of a new species of Abrocoma. Journal of Mammalogy, 83:1-19.
Emmons, L. H. 1999. A new genus and species of abrocomid rodent from Peru (Rodentia: Abrocomidae). American Museum Novitas, 3279:1-14.

External links

v t e Extant families in order Rodentia
Kingdom: Animalia Phylum: Chordata Class: Mammalia Infraclass: Eutheria Superorder: Euarchontoglires
Sciuromorpha ("Squirrel-like")	Aplodontiidae (Mountain beaver) Gliridae (Dormice) Sciuridae (Squirrels, chipmunks, marmots, susliks and prairie dogs)
Castorimorpha ("Beaver-like")	Castoroidea Castoridae (Beavers) Geomyoidea Geomyidae (Pocket gophers) Heteromyidae (Kangaroo rats and mice, pocket mice)
Myomorpha ("Mouse-like")	Dipodoidea Dipodidae (Jerboas, jumping mice and birch mice) Muroidea Platacanthomyidae (Oriental dormice) Spalacidae (Zokors, bamboo rats, mole rats, blind mole rats) Calomyscidae (Mouse-like hamsters) Nesomyidae (Malagasy rats and relatives) Cricetidae (Hamsters and relatives) Muridae (House mouse and relatives)
Anomaluromorpha ("Anomalure-like")	Anomaluridae (Anomalures) Pedetidae (Springhares)
Hystricomorpha ("Porcupine-like")	Ctenodactylidae (Gundis) Diatomyidae (Laotian rock rat) Hystricidae (Old World porcupines) Phiomorpha Bathyergidae (Blesmols) Petromuridae (Dassie rat) Thryonomyidae (Cane rats) Caviomorpha (New World hystricognaths) Erethizontidae (New World porcupines) Caviidae (Cavies) Cuniculidae (Pacas) Dasyproctidae (Agoutis and acouchis) Dinomyidae (Pacarana) Ctenomyidae (Tuco-tucos) Echimyidae (Spiny rats, coypus, hutias) Octodontidae (Degus and relatives) Abrocomidae (Chinchilla rats) Chinchillidae (Chinchillas and viscachas)

v t e Extant species of family Abrocomidae (Chinchilla rats)
Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Rodentia Suborder: Hystricomorpha Infraorder: Caviomorpha
Abrocoma	Bennett's chinchilla rat (Abrocoma bennettii) Bolivian chinchilla rat (Abrocoma boliviensis) Budin's chinchilla rat (Abrocoma budini) Ashy chinchilla rat (Abrocoma cinerea) Famatina chinchilla rat (Abrocoma famatina) Sierra del Tontal chinchilla rat (Abrocoma shistacea) Uspallata chinchilla rat (Abrocoma uspallata) Punta de Vacas chinchilla rat (Abrocoma vaccarum)
Cuscomys	Asháninka arboreal chinchilla rat (Cuscomys ashaninka) Machu Picchu arboreal chinchilla rat (Cuscomys oblativus)
Category

Taxon identifiers
Abrocomidae	Wikidata: Q873530 Wikispecies: Abrocomidae ADW: Abrocomidae CoL: 622QK EoL: 8678 GBIF: 5488 iNaturalist: 43699 IRMNG: 104617 ITIS: 584582 MSW: 13400391 NCBI: 108853 Open Tree of Life: 234029 Paleobiology Database: 42068

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