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Dasyproctidae is a family of large South American rodents, comprising the agoutis and acouchis. 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. 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 Oligocene period (34-23 million years ago). 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. ==Classification== Fossil taxa follow McKenna and Bell,〔McKenna, Malcolm C., and Bell, Susan K. 1997. ''Classification of Mammals Above the Species Level.'' Columbia University Press, New York, 631 pp. ISBN 0-231-11013-8〕 with modifications following Kramarz.〔Kramarz, A.G. 2005. A primitive cephalomyid hystricognath rodent from the early Miocene of northern Patagonia, Argentina. ''Acta Palaeontologica Polonica'' 50(2):249-258. (PDF fulltext ) 〕 *Family Dasyproctidae * *Genus †''Alloiomys'' * *Genus †''Australoprocta'' * *Genus †''Branisamys'' * *Genus †''Incamys'' * *Genus †''Neoreomys'' * *Genus †''Megastus'' * *Genus †''Palmiramys'' * *Genus ''Dasyprocta'' * * *Azara's agouti, ''D. azarae'' * * *Coiban agouti, ''D. coibae'' * * *Crested agouti, ''D. cristata'' * * *Black agouti, ''D. fuliginosa'' * * *Orinoco agouti, ''D. guamara'' * * *Kalinowski's agouti, ''D. kalinowskii'' * * *Red-rumped agouti, ''D. leporina'' * * *Mexican agouti, ''D. mexicana'' * * *Black-rumped agouti, ''D. prymnolopha'' * * *Central American agouti, ''D. punctata'' * * *Ruatan Island agouti, ''D. ruatanica'' * *Genus ''Myoprocta'' * * *Green acouchi, ''M. pratti'' * * *Red acouchi, ''M. acouchy'' The pacas (genus ''Cuniculus'') are placed by some authorities〔〔Woods, C. A. 1993. Hystricognathi. In Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Smithsonian Institution Press, Washington D.C.〕 in Dasyproctidae, but molecular studies have demonstrated they do not form a monophyletic group.〔Rowe, D. L. and R. L. Honeycutt. 2002. Phylogenetic relationships, ecological correlates, and molecular evolution within the Cavioidea (Mammalia, Rodentia). Molecular Biology and Evolution, 19:263-277. 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Dasyproctidae」の詳細全文を読む スポンサード リンク
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