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水豚亚科; 化石时期：晚中新世至現在 PreЄ Є O S D C P T J K Pg N
	水豚
科学分类
界：	动物界 Animalia
门：	脊索动物门 Chordata
纲：	哺乳纲 Mammalia
目：	啮齿目 Rodentia
科：	豚鼠科 Caviidae
亚科：	水豚亚科 Hydrochoerinae; J. E. Gray, 1825
屬
	岩豚鼠属 Kerodon; †Porcellusignum; †Cardiatherium; †Phugatherium; †Xenocardia; †Contracavia; †Anatochoerus; †Hydrochoeropsis; †Nothydrochoerus; †Neochoerus; †Protohydrochoerus; 水豚属 Hydrochoerus;

水豚亞科（学名：Hydrochoerinae）是豚鼠科下的一個亞科，其下只有兩個屬還有存活物種，即水豚屬和岩豚鼠屬。不過在2005年之前，水豚和其親緣種還都分在水豚科下（Hydrochoeridae），^[1]後來基於生物系統發生學證據將其劃入亞科。^[2]^[3]但是一些古生物分類還依然採用舊的方法。^[4]^[5]生物分類中，該亞科的種在不斷減少。^[4]^[5]^[6]這主要是由於該亞科生物在不同生命階段臼齒形狀有較大變動。^[4]例如科學家曾經根據不同的臼齒劃出過四屬七種不同生物，但現在被認為它們只是不同年齡段的Cardiatherium paranense而已。^[4]

參考文獻

^ 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
^ Rowe, D. L.; Honeycutt, R. L. Phylogenetic relationships, ecological correlates, and molecular evolution within the Cavioidea (Mammalia, Rodentia). Molecular Biology and Evolution. 2002, 19 (3): 263–277 [2011-10-03]. ISSN 0737-4038. PMID 11861886.
^ Woods, C. A.; Kilpatrick, C. W. Infraorder Hystricognathi. Wilson, D. E.; Reeder, D. M (编). Mammal Species of the World 3rd. Johns Hopkins University Press. 2005: 1555–1556. ISBN 978-0-8018-8221-0. OCLC 62265494.
^ ^4.0 ^4.1 ^4.2 ^4.3 Vucetich, M. G.; Deschamps, C. M.; Olivares, A. I.; Dozo, M. T. Capybaras, size, shape, and time: A model kit. Acta Palaeontologica Polonica. 2005, 50 (2): 259–272 [2012-05-21].
^ ^5.0 ^5.1 Deschamps, C. M.; Olivares, A. I.; Vieytes, E. C.; Vucetich, M. G. Ontogeny and diversity of the oldest capybaras (Rodentia: Hydrochoeridae; late Miocene of Argentina. Journal of Vertebrate Paleontology. 2007-09-12, 27 (3): 683–692 [2012-05-21]. JSTOR 30126368.
^ Prado, J. L.; Cerdeño, E.; Roig-Juñent, S. The giant rodent Chapalmatherium from the Pliocene of Argentina: New remains and taxonomic remarks on the Family Hydrochoeridae. Journal of Vertebrate Paleontology. 1998-12-28, 18 (4): 788–798 [2012-05-21]. JSTOR 4523956.

[1] 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

[Rowe-2] Rowe, D. L.; Honeycutt, R. L. Phylogenetic relationships, ecological correlates, and molecular evolution within the Cavioidea (Mammalia, Rodentia). Molecular Biology and Evolution. 2002, 19 (3): 263–277 [2011-10-03]. ISSN 0737-4038. PMID 11861886.

[MSW3-3] Woods, C. A.; Kilpatrick, C. W. Infraorder Hystricognathi. Wilson, D. E.; Reeder, D. M (编). Mammal Species of the World 3rd. Johns Hopkins University Press. 2005: 1555–1556. ISBN 978-0-8018-8221-0. OCLC 62265494.

[Vucetich-4] 4.0 ^4.1 ^4.2 ^4.3 Vucetich, M. G.; Deschamps, C. M.; Olivares, A. I.; Dozo, M. T. Capybaras, size, shape, and time: A model kit. Acta Palaeontologica Polonica. 2005, 50 (2): 259–272 [2012-05-21].

[Deschamps-5] 5.0 ^5.1 Deschamps, C. M.; Olivares, A. I.; Vieytes, E. C.; Vucetich, M. G. Ontogeny and diversity of the oldest capybaras (Rodentia: Hydrochoeridae; late Miocene of Argentina. Journal of Vertebrate Paleontology. 2007-09-12, 27 (3): 683–692 [2012-05-21]. JSTOR 30126368.

[Prado-6] Prado, J. L.; Cerdeño, E.; Roig-Juñent, S. The giant rodent Chapalmatherium from the Pliocene of Argentina: New remains and taxonomic remarks on the Family Hydrochoeridae. Journal of Vertebrate Paleontology. 1998-12-28, 18 (4): 788–798 [2012-05-21]. JSTOR 4523956.

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水豚亞科

參考文獻

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