Dasyproctidae is a family of large South American rodents, comprising the agoutis and acouchis.[1] Their fur is a reddish or dark colour above, with a paler underside. They are herbivorous, often feeding on ripe fruit that falls from trees. They live in burrows, and, like squirrels, will bury some of their food for later use.[2]

Dasyproctidae
Temporal range: Late Oligocene (Deseadan)-Recent
~23–0 Ma
Dasyprocta punctata (Gamboa, Panama).jpg
Central American agouti, D. punctata
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Superfamily: Cavioidea
Family: Dasyproctidae
Gray 1825
Genera

See text

Dasyproctids exist in Central and South America, which are the tropical parts of the New World. The fossil record of this family can be traced back to the Late Oligocene (Deseadan in the SALMA classification).

As with all rodents, members of this family have incisors, pre-molars, and molars, but no canines. The cheek teeth are hypsodont and flat-crowned.

ClassificationEdit

Fossil taxa follow McKenna and Bell,[3] with modifications following Kramarz.[4]

The pacas (genus Cuniculus) are placed by some authorities[3][5] in Dasyproctidae, but molecular studies have demonstrated they do not form a monophyletic group.[6]

ReferencesEdit

  1. ^ Woods, C.A.; Kilpatrick, C.W. (2005). "Infraorder Hystricognathi". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 1538–1600. ISBN 978-0-8018-8221-0. OCLC 62265494.
  2. ^ Bishop, Ian (1984). Macdonald, D. (ed.). The Encyclopedia of Mammals. New York: Facts on File. p. 701. ISBN 0-87196-871-1.
  3. ^ a b McKenna, Malcolm C.; Bell, Susan K (1997). Classification of Mammals Above the Species Level. New York: Columbia University Press. ISBN 0-231-11013-8.
  4. ^ Kramarz, A. G. (2005). "A primitive cephalomyid hystricognath rodent from the early Miocene of northern Patagonia, Argentina". Acta Palaeontologica Polonica. 50 (2): 249–258.
  5. ^ Woods, C. A. (1993). "Hystricognathi". In Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference. Washington D.C.: Smithsonian Institution Press.
  6. ^ Rowe, D. L.; Honeycutt, R. L. (2002). "Phylogenetic relationships, ecological correlates, and molecular evolution within the Cavioidea (Mammalia, Rodentia)". Molecular Biology and Evolution. 19: 263–277.

External linksEdit