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Caviomorpha (caviomorph)

Mammalia - Rodentia

Synonyms
Synonymy list
YearName and author
1932Palmiramys Kraglievich
1932Palmiramys waltheri Kraglievich pp. 314-316
1955Caviomorpha Wood and Patterson
1958Caviomorpha Wood p. 172
1976Luribayomys Lavocat
1976Luribayomys masticator Lavocat
1979Palmiramys Mones and Castiglioni p. 78
1982Caviomorpha Patterson and Wood
1986Caviomorpha Mones and Ojasti p. 1
1988Caviomorpha Carroll
1993Caviomorpha MacFadden et al. p. 235
1996Caviomorpha Vucetich and Verzi
1997Luribayomys McKenna and Bell
1999Caviomorpha Nowak
2001Caviomorpha Huchon and Douzery p. 242
2001Caviomorpha Kramarz
2010Caviomorpha Coster et al. p. 702
2015Caviomorpha Turvey et al. p. 207
2015Caviomorpha Vucetich et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
RankNameAuthor
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—EuarchontogliresMurphy et al. 2001
—GliriformesWyss and Meng 1996
—Glires()
—Simplicidentata()
orderRodentiaBowdich 1821
—CtenohystricaHuchon et al. 2000
infraorderHystricognathi(Tullberg 1899)
—Caviomorpha(Wood and Patterson 1955)
—Caviomorpha(Wood and Patterson 1955)

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Unr. Caviomorpha Wood and Patterson 1955 [caviomorph]
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G. †Aenigmys Vucetich et al. 2005
+
†Aenigmys diamantensis Vucetich et al. 2005
G. †Balsayacuy Boivin et al. 2021
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†Balsayacuy huallagaensis Boivin et al. 2021
G. †Cachiyacuy Antoine et al. 2011
+
†Cachiyacuy contamanensis Antoine et al. 2011
†Cachiyacuy kummeli Antoine et al. 2011
G. †Canaanimys Antoine et al. 2011
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†Canaanimys maquiensis Antoine et al. 2011
Superfm. Cavioidea Fischer de Waldheim 1817
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Fm. Agoutidae Gray 1821
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Subfm. †Dasyproctinae Gray 1825
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G. †Eoincamys Frailey and Campbell, Jr 2004
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†Eoincamys ameghinoi Frailey and Campbell, Jr 2004
†Eoincamys parvus Boivin et al. 2018
†Eoincamys pascuali Frailey and Campbell, Jr 2004
†Eoincamys valverdei Boivin et al. 2018
G. †Eopicure Frailey and Campbell, Jr 2004
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†Eopicure kraglievichi Frailey and Campbell, Jr 2004
G. †Andemys Bertrand et al. 2012
+
†Andemys termasi Bertrand et al. 2012
G. †Asteromys Ameghino 1897
+
†Asteromys bolivianus Lavocat 1976
†Asteromys puelche Candela et al. 2021
†Asteromys punctus Ameghino 1897
G. †Banderomys Kramarz 2005
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†Banderomys leanzai Kramarz 2005
G. †Branisamys Hoffstetter and Lavocat 1970
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†Branisamys luribayensis Hoffstetter and Lavocat 1970
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Invalid names: Villarroelomys bolivianus Hartenberger 1975 [synonym]
Invalid names: Villarroelomys Hartenberger 1975 [synonym]
Fm. Caviidae Gray 1821
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G. †Allocavia Pascual 1962
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†Allocavia chasicoense Pascual 1962
Subfm. †Cardiomyinae Kraglievich 1930
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G. †Parodimys Kraglievich 1932
G. †Cardiomys Ameghino 1885
+
Subg. †Cardiomys (Pseudocardiomys) Kraglievich 1932
†Cardiomys ameghinorum Rovereto 1914
†Cardiomys cavinus Ameghino 1885
†Cardiomys leufuensis Pérez et al. 2018
†Cardiomys mesopotamicus Ameghino 1888
Invalid names: Cardiomys andinus Kraglievich 1930 [nomen dubium]
G. Cavia Pallas 1766 [guinea pig]
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Subg. Cavia (Cavia) Pallas 1766
Cavia aperea Erxleben 1777 [Brazilian guinea pig]
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Cavia aperea aperea Erxleben 1777
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Invalid names: Cavia anolaimae Allen 1916 [synonym], Cavia guianae caripensis Ojasti 1964 [synonym], Cavia porcellus venezuelae Allen 1911 [synonym]
Cavia aperea nana Thomas 1917
†Cavia cabrerai Candela and Bonini 2017
Cavia fulgida Wagler 1831 [shiny guinea pig]
†Cavia galileoi Verzi and Quintana 2005
Cavia intermedia Cherem et al. 1999 [Santa Catarina's guinea pig]
†Cavia lamingnae Locks and Montenegro 1985
Cavia magna Ximenez 1980 [greater guinea pig]
†Cavia oeningensis Holl 1829
Cavia patzelti Schliemann 1982
Cavia porcellus Linnaeus 1758 [guinea pig]
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Invalid names: Cavia cobaya Pallas 1766 [objective synonym]
Cavia tschudii Fitzinger 1867 [montane guinea pig]
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Cavia tschudii tschudii Fitzinger 1867
Invalid names: Cavia tschudii pallidior Thomas 1917 [replaced]
Cavia tschudii osgoodi Sandborn 1949
†Cavia vates Winge 1887
Subfm. Caviinae Gray 1821
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G. Galea Meyen 1832
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†Galea leucoblephara Burmeister 1861
Galea musteloides Meyen 1832 [common yellow-toothed cavy]
Galea spixii Wagler 1851
G. †Palaeocavia Ameghino 1889
+
†Palaeocavia avita Ameghino 1887
†Palaeocavia brocherense Castellanos 1936
†Palaeocavia chapalmalense Ameghino 1908
†Palaeocavia humahuaquense Candela et al. 2023
†Palaeocavia impar Ameghino 1888
†Palaeocavia mawka Madozzo-Jaén and Pérez 2017
†Palaeocavia minuta Ameghino 1889
†Palaeocavia pampaea Ameghino 1889
G. †Caviodon Ameghino 1885
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Subg. †Caviodon (Paracaviodon) Kraglievich 1932
†Caviodon andalhualensis Pérez et al. 2018
†Caviodon australis Ameghino 1889
†Caviodon cuyano Vucetich et al. 2011
†Caviodon multiplicatus Ameghino 1885
+
Invalid names: Caviodon angustidens Kraglievich 1932 [synonym], Caviodon bravardi Kraglievich 1927 [synonym], Caviodon paranensis Kraglievich 1930 [synonym], Caviodon scalai Kraglievich 1932 [synonym]
†Caviodon pozzii Kraglievich 1927
G. †Caviops Ameghino 1908
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†Caviops chapadmalalensis Ameghino 1908
†Caviops chapalmalensis Ameghino 1908
†Caviops duplicatus Ameghino 1908
G. †Dolicavia Ameghino 1916
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†Dolicavia minuscula Ameghino 1908
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Invalid names: Dolicavia loberiaense Ameghino 1908 [synonym]
Subfm. Dolichotinae [mara]
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G. †Eodolichotis Walton 1990
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†Eodolichotis elachys Walton 1990
†Eodolichotis maddeni Walton 1990
G. Pediolagus Marelli 1927
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Pediolagus salinicola Burmeister 1875
G. †Pliodolichotis Kraglievich 1927
G. †Rhodanodolichotis Walton 1990
+
G. Dolichotis Desmarest 1820 [mara]
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†Dolichotis andina Rovereto 1914
†Dolichotis intermedia Ameghino 1889
†Dolichotis minuscula Ameghino 1908
Dolichotis patagonum Zimmermann 1780 [Patagonian mara]
†Dolichotis platycephala Ameghino 1889
†Dolichotis salinicola Burmeister 1876
Subfm. Hydrochoerinae Gill 1872
+
G. †Hydrochoeropsis Kraglievich 1930
+
†Hydrochoeropsis dasseni Kraglievich 1930
†Hydrochoeropsis wayuu Pérez et al. 2017
G. Hydrochoerus Brisson 1762 [capybara]
+
†Hydrochoerus gaylordi MacPhee et al. 2000
†Hydrochoerus hesperotiganites White et al. 2022 [capybara]
Hydrochoerus hydrochaeris Linnaeus 1766 [capybara]
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Invalid names: Capiguara americana Liais 1872 [synonym], Cavia capybara Pallas 1766 [synonym], Hydrochoerus cololoi Berro 1968 [synonym], Hydrochoerus irroratus Ameghino 1889 [synonym], Hydrochoerus uruguayensis Ameghino and Rovereto 1914 [synonym]
Hydrochoerus isthmius Goldman 1912
†Hydrochoerus perturbidus Ameghino 1889
†Hydrochoerus tarijensis Ameghino 1902
Invalid names: Capiguara Liais 1872 [synonym], Xenohydrochoerus Rusconi 1934 [synonym]
G. †Neochoerus Hay 1926
+
†Neochoerus aesopi Leidy 1853
+
Invalid names: Hydrochoerus holmesi Simpson 1928 [synonym], Hydrochoerus robustus Leidy 1886 [synonym]
†Neochoerus sirasakae Spillmann 1941
Invalid names: Oromys Leidy 1853 [synonym], Prohydrochoerus Spillmann 1941 [synonym]
G. †Xenocardia Pascual and Bondesio 1963
+
†Xenocardia diversidens Pascual and Bondesio 1963
G. Kerodon Cuvier 1823
+
†Cerodon priscus Ameghino 1889
†Cerodon pygmeus Ameghino 1889
†Cerodon turgeo Ameghino 1889
†Kerodon rupestris Wied 1820
G. Microcavia Gervais and Ameghino 1880
+
†Microcavia aua Mones and Castiglioni 1979
Microcavia australis Geoffroy and Dorbigny 1833
†Microcavia chapalmalensis Ameghino 1908
†Microcavia isolinense Castellanos 1936
†Microcavia prona Ameghino 1889
†Microcavia uncinata Ameghino 1889
G. †Neocavia Kraglievich 1932
+
†Neocavia depressidens Parodi and Kraglievich 1948
†Neocavia lozanoi Kraglievich 1932
†Neocavia pampeana Madozzo-Jaén et al. 2018
G. †Orthomyctera Ameghino 1889
+
†Orthomyctera andina Rovereto 1914
†Orthomyctera brocherense Castellanos 1936
†Orthomyctera chapalmalense Ameghino 1908
†Orthomyctera lacunosa Ameghino 1888
†Orthomyctera lata Ameghino 1889
†Orthomyctera rigens Ameghino 1888
†Orthomyctera vaga Ameghino 1889
G. †Pascualia Ortega Hinosa 1963
+
†Pascualia laeviplicata Ortega Hinosa 1963
G. †Procardiomys Pascual 1961
+
†Procardiomys martinoi Pascual 1961
G. †Prodolichotis Kraglievich 1932
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†Dolichotis prisca mendocina Rovereto 1914
†Prodolichotis guerreroi Walton 1990
†Prodolichotis pridiana Fields 1957
†Prodolichotis prisca Rovereto 1914
G. †Propediolagus Ortega Hinosa 1963
+
†Propediolagus marplatensis Ortega Hinosa 1963
G. †Chubutomys Wood and Patterson 1959
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†Chubutomys leucoreios Pérez et al. 2010
†Chubutomys navaensis Pérez et al. 2012
†Chubutomys simpsoni Wood and Patterson 1959
Fm. Cuniculidae Miller and Gidley 1918
+
G. Cuniculus Brisson 1762
+
Cuniculus paca Linnaeus 1766 [lowland paca]
Cuniculus taczanowskii Stolzmann 1885 [mountain paca]
Invalid names: Agouti Lacépède 1799 [objective synonym]
Fm. Dasyproctidae Gray 1825
+
G. †Alloiomys Vucetich 1977
+
†Alloiomys friasensis Kraglievich 1930
+
Invalid names: Alloiomys pattersoni Vucetich 1979 [synonym]
G. †Australoprocta Kramarz 1998
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†Australoprocta fleaglei Kramarz 1998
G. Coelogenus Cuvier 1807
G. Dasyprocta Illiger 1811 [agouti]
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Dasyprocta leporina Linnaeus 1758 [red-rumped agouti]
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Invalid names: Mus aguti Linnaeus 1766 [synonym]
Dasyprocta punctata Gray 1842 [Central American agouti]
G. †Mesoprocta Croft et al. 2011
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†Mesoprocta hypsodus Croft et al. 2011
G. Myoprocta Thomas 1903 [acouchi]
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Myoprocta acouchy Erxleben 1777 [red acouchi]
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Invalid names: Dasyprocta exilis Wagler 1831 [synonym], Dasyprocta leptura Wagner 1844 [synonym]
Myoprocta milleri Allen 1913
Myoprocta pratti Pocock 1913 [green acouchi]
G. †Eobranisamys Frailey and Campbell, Jr 2004
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†Eobranisamys javierpradoi Boivin et al. 2017
†Eobranisamys riverai Frailey and Campbell, Jr 2004
†Eobranisamys romeropittmanae Frailey and Campbell, Jr 2004
G. †Eocardia Ameghino 1887
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Subg. †Eocardia (Dicardia) Ameghino 1891
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†Eocardia (Dicardia) maxima Ameghino 1891
†Eocardia (Dicardia) modica Ameghino 1891
Subg. †Eocardia (Procardia) Ameghino 1891
Subg. †Eocardia (Tricardia) Ameghino 1891
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†Eocardia montana Ameghino 1887
†Eocardia petersoni Scott 1905
†Eocardia robertoi Vucetich 1984
†Eocardia robusta Vucetich 1984
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Invalid names: Eocardia divisa Ameghino 1887 [synonym], Eocardia perforata Ameghino 1887 [synonym]
Fm. †Eocardiidae Ameghino 1891
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G. †Dicardia Ameghino 1891
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†Dicardia fissa Ameghino 1891
†Dicardia proxima Ameghino 1894
Subfm. †Eocardiinae Wood and Patterson 1959
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G. †Schistomys Ameghino 1887
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†Schistomys crassus Ameghino 1891
†Schistomys ellipticus Ameghino 1891
†Schistomys erro Ameghino 1887
G. †Eoprocardia Trouessart 1904
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†Eoprocardia elliptica Ameghino 1891
Invalid names: Procardia Ameghino 1891 [replaced]
G. †Hedimys Ameghino 1887
+
†Hedimys integratus Ameghino 1887
G. †Matiamys Vucetich 1984
+
†Matiamys elegans Vucetich 1984
G. †Megastus Roth 1898
+
†Megastus elongatus Roth 1898
G. †Phanomys Ameghino 1887
+
†Phanomys mixtus Ameghino 1887
†Phanomys vetulus Ameghino 1891
G. †Tricardia Ameghino 1891
Invalid names: Luantinae Wood and Patterson 1959 [empty]
G. †Guiomys Pérez 2010
+
†Guiomys unica Pérez 2010
Fm. Hydrochoeridae Gill 1872
+
G. †Anatochoerus Vucetich and Mones 1991
+
†Anatochoerus inusitatus Vucetich and Mones 1991
G. †Cantracavia Burmeister 1885
G. †Cardiatherium Ameghino 1883
+
†Cardiatherium calingastaense Cerdeño et al. 2019
†Cardiatherium chasicoense Pascual and Bondesio 1968
†Cardiatherium dubium Pascual and Bondesio 1968
†Cardiatherium isseli Rovereto 1914
†Cardiatherium lynchii Ameghino 1889
†Cardiatherium magnum Kraglievich 1940
†Cardiatherium paranense Ameghino 1883
+
Invalid names: Anchimys marshi Ameghino 1891 [synonym], Cardiatherium denticulatum Ameghino 1885 [synonym], Cardiatherium doeringi Ameghino 1883 [synonym], Cardiatherium petrosum Ameghino 1885 [synonym], Kiyutherium scillatoyanei Bondesio 1985 [synonym], Procardiatherium crassum Ameghino 1885 [synonym], Procardiatherium simplicidens Ameghino 1885 [synonym]
†Cardiatherium patagonicum Vucetich et al. 2005
†Cardiatherium rosendoi Bondesio 1985
†Cardiatherium rothi Kraglievich 1945
†Cardiatherium talicei Francis and Jones 1965
†Cardiotherium isseli Rovereto 1914
Invalid names: Anchimys Ameghino 1886 [synonym], Kiyutherium Francis and Mones 1965 [synonym], Plexochoerus Ameghino 1886 [synonym], Procardiatherium Ameghino 1885 [synonym]
G. †Contracavia Burmeister 1885
+
†Contracavia minuta Ameghino 1885
G. †Phugatherium Ameghino 1887
+
†Phugatherium cataclisticum Ameghino 1887
+
Invalid names: Anchimysops villalobosi Kraglievich 1927 [objective synonym], Chapalmatherium irenense Reig 1958 [synonym], Hydrochoerus lydekkeri Moreno 1888 [synonym], Neoanchimys pisanoi Pascual and Bondesio 1961 [synonym], Protohydrochoerus perturbidus Ameghino 1889 [synonym], Protohydrochoerus rothi Rovereto 1914 [synonym]
†Phugatherium dichroplax Ahearn and Lance 1980
+
Invalid names: Neochoerus cordobai Carranza-Castaneda and Miller 1989 [synonym], Neochoerus lancei Mones 1980 [synonym]
†Phugatherium novum Ameghino 1908
+
Invalid names: Chapalmatherium saavedrai Hoffstetter et al. 1984 [synonym]
Invalid names: Anchimysops Kraglievich 1927 [synonym], Chapalmatherium Ameghino 1908 [synonym], Neoanchimys Pascual and Bondesio 1961 [synonym], Protohydrochoerus Rovereto 1914 [synonym]
Subfm. †Protohydrochoerinae Kraglievich 1930
+
G. †Nothydrochoerus Rusconi 1935
+
†Nothydrochoerus fontanai Rusconi 1933
Invalid names: Anatochoerinae Mones and Vucetich 1991 [invalid subgroup], Cardiatheriinae Kraglievich 1930 [invalid subgroup]
G. †Luantus Ameghino 1899
+
†Luanthus initialis Ameghino 1902
†Luantus minor Pérez et al. 2010
†Luantus propheticus Ameghino 1899
+
Invalid names: Eocardia prisca Ameghino 1899 [synonym]
†Luantus sompallwei Solorzano et al. 2020
†Luantus toldensis Kramarz 2006
G. †Microcardiodon Pérez and Vucetich 2011
+
†Microcardiodon huemulensis Kraglievich 1930
†Microcardiodon williensis Pérez and Vucetich 2011
G. †Neoreomys Ameghino 1887
+
†Neoreomys australis Ameghino 1887
+
Invalid names: Neoreomys (Pseudoneoreomys) leptorhynchus Ameghino 1891 [synonym], Neoreomys (Pseudoneoreomys) mesorhynchus Ameghino 1891 [synonym], Neoreomys (Pseudoneoreomys) pachyrhynchus Ameghino 1891 [synonym], Neoreomys decisus Ameghino 1887 [synonym], Neoreomys indivisus Ameghino 1887 [synonym], Neoreomys variegatus Ameghino 1894 [synonym]
†Neoreomys huilensis Fields 1957
†Neoreomys limatus Ameghino 1891
†Neoreomys pinturensis Kramarz 2006
Invalid names: Neoreomys (Pseudoneoreomys) Ameghino 1891 [invalid subgroup]
G. †Soriamys Kramarz 2001
+
†Soriamys gaimanensis Kramarz 2001
†Soriamys ganganensis Kramarz 2001
Fm. †Cephalomyidae Ameghino 1897
+
G. †Cephalomyopsis Vucetich 1985
+
G. †Cephalomys Ameghino 1897
+
†Cephalomys arcidens Ameghino 1897
+
Invalid names: Asteromys annectens Ameghino 1902 [synonym], Asteromys prospicuus Ameghino 1897 [synonym], Cephalomys plexus Ameghino 1897 [synonym], Cephalomys prorsus Ameghino 1902 [synonym], Orchiomys prostans Ameghino 1897 [synonym]
†Cephalomys ceciae Vucetich et al. 2015
Invalid names: Orchiomys Ameghino 1897 [synonym]
G. †Litodontomys Loomis 1914
+
†Litodontomys chubutensis Loomis 1914
G. †Chachapoyamys Boivin et al. 2021
+
†Chachapoyamys kathetos Boivin et al. 2021
G. †Chambiramys Boivin et al. 2017
+
†Chambiramys shipiborum Boivin et al. 2017
†Chambiramys sylvaticus Boivin et al. 2017
Fm. Chinchillidae Bennett 1833 [chinchilid]
+
G. Chinchilla Bennett 1829 [chinchilla]
+
Chinchilla chinchilla Lichtenstein 1830 [short-tailed chinchilla]
Chinchilla lanigera Molina 1782 [long-tailed chinchilla]
G. †Eoviscaccia Vucetich 1989
+
†Eoviscaccia australis Vucetich 1989
†Eoviscaccia boliviana Vucetich 1989
†Eoviscaccia frassinettii Bertrand et al. 2012
G. †Incamys Hoffstetter and Lavocat 1970
+
†Incamys bolivianus Hoffstetter and Lavocat 1970
+
Invalid names: Incamys pretiosus Lavocat 1976 [synonym]
†Incamys menniorum Vucetich et al. 2015
G. Lagidium Meyen 1833 [mountain viscacha]
+
Lagidium ahuacaense Ledesma et al. 2009
Lagidium peruanum Meyen 1833 [northern viscacha]
Lagidium viscacia Molina 1782 [southern viscacha]
+
Invalid names: Lagidium lutescens Philippi 1896 [synonym]
Lagidium wolffsohni Thomas 1907 [Wolffsohn's viscacha]
Invalid names: Lagotis Bennett 1833 [synonym]
Subfm. Lagostominae Wiegmann 1832
+
G. Lagostomus Brookes 1828 [viscacha]
+
Subg. †Lagostomus (Lagostomopsis) Kraglievich 1926
+
+
Invalid names: Lagostomus intermedius Moreno 1888 [synonym], Lagostomus spicatus Ameghino 1888 [synonym]
†Lagostomus antiquus Ameghino 1883
†Lagostomus compressidens Ameghino 1908
+
Invalid names: Viscaccia indefinita Ameghino 1908 [objective synonym]
†Lagostomus euplasius Ameghino 1908
+
Invalid names: Viscaccia chapalmalense Ameghino 1908 [objective synonym], Viscaccia definata Ameghino 1908 [objective synonym], Viscaccia loberiaense Ameghino 1908 [objective synonym]
†Lagostomus laminosus Ameghino 1891
Lagostomus maximus Desmarest 1817 [plains viscacha]
+
Invalid names: Lagostomus angustidens Moreno 1888 [synonym], Lagostomus cavifrons Ameghino 1889 [objective synonym], Lagostomus debilis Ameghino 1889 [synonym], Lagostomus heterogenidens Ameghino 1889 [synonym], Lagostomus minimus Ameghino 1889 [synonym]
†Lagostomus pretrichodactyla Rovereto 1914
+
Invalid names: Viscaccia angulata Rovereto 1914 [synonym], Viscaccia insolita Rovereto 1914 [synonym]
†Lagostomus telenkechanum Rasia and Candela 2017
+
Invalid names: Callomys viscaccia d'Orbigny and Geoffroy 1830 [synonym]
G. †Miochinchilla Croft et al. 2021
+
†Miochinchilla plurinacionalis Croft et al. 2021
†Miochinchilla surirense Croft et al. 2021
G. †Pliolagostomus Ameghino 1887
+
†Pliolagostomus friasensis Vucetich 1984
+
Invalid names: Prolagostomus lateralis Ameghino 1889 [synonym]
†Pliolagostomus notatus Ameghino 1887
+
Invalid names: Prolagostomus amplus Ameghino 1894 [synonym]
G. †Prolagostomus Ameghino 1887
+
†Prolagostomus pusillus Ameghino 1887
+
Invalid names: Prolagostomus divisus Ameghino 1887 [objective synonym], Prolagostomus imperialis Ameghino 1887 [objective synonym], Prolagostomus primigenius Ameghino 1889 [objective synonym], Prolagostomus profluens Ameghino 1887 [objective synonym]
†Prolagostomus rosendoi Vucetich 1984
Invalid names: Scotaeumys Ameghino 1887 [synonym], Sphaeromys Ameghino 1887 [synonym]
G. †Scotamys Loomis 1914
+
†Scotamys antiquus Loomis 1914
G. †Sphodromys Ameghino 1887
Superfm. Chinchilloidea Bennett 1833
+
G. †Borikenomys Marivaux et al. 2020
+
†Borikenomys praecursor Marivaux et al. 2020
Fm. Dinomyidae Peters 1873
+
G. †Briaromys Ameghino 1889
+
†Briaromys trouessartianus Ameghino 1889
G. †Carlesia Kraglievich 1926
G. †Colpostemma Ameghino 1891
G. †Diaphoromys Kraglievich 1931
+
†Diaphoromys arctus Rusconi 1945
†Diaphoromys gamayensis Kraglievich 1931
Invalid names: Diaphoromys mesopotamicus Kraglievich 1932 [nomen dubium]
G. Dinomys Peters 1873 [pacarana]
+
Dinomys branickii Peters 1873 [pacarana]
G. †Discolomys Ameghino 1889
+
†Discolomys cuneus Ameghino 1889
G. †Doellomys Alvarez 1947
G. †Drytomomys Anthony 1922
+
†Drytomomys aequatorialis Anthony 1922
Subfm. †Eumegamyinae Kraglievich 1926
+
G. †Arazamys Rinderknecht et al. 2011
+
†Arazamys castiglionii Rinderknecht et al. 2011
G. †Isostylomys Kraglievich 1926
+
†Isostylomys laevis Rusconi 1945
†Isostylomys laurillardi Ameghino 1883
+
Invalid names: Isostylomys intermedius Mones and Castiglioni 1979 [synonym], Isostylomys magnus Mones and Castiglioni 1979 [synonym]
G. †Tetrastylus Ameghino 1886
+
†Tetrastylus angustidens Rusconi 1934
†Tetrastylus araucanus Ameghino 1904
†Tetrastylus atrophiatus Rovereto 1914
†Tetrastylus intermedius Rovereto 1914
†Tetrastylus laevigatus Ameghino 1886
†Tetrastylus montanus Ameghino 1891
Invalid names: Loxomylus Cope 1869 [synonym], Protelicomys Kraglievich 1931 [synonym], Tetrastylopsis Kraglievich 1931 [synonym]
G. †Eumegamys Kraglievich 1926
+
†Eumegamys contortus Ameghino 1889
†Eumegamys paranensis Kraglievich 1926
†Eumegamys scalabrinianus Kraglievich 1926
Invalid names: Megamys D'Orbigny 1842 [synonym]
G. †Eumegamysops Alvarez 1947
+
†Eumegamysops praependens Ameghino 1886
G. †Eusigmomys Ameghino 1905
+
†Eusigmomys oppositus Ameghino 1904
Invalid names: Sigmomys Ameghino 1904 [synonym]
G. †Ferigolomys Kerber et al. 2018
+
†Ferigolomys pacarana Kerber et al. 2018
G. †Gyriabrus Ameghino 1891
+
†Gyriabrus holmbergi Ameghino 1885
+
Invalid names: Gyriabrus teisseirei Kraglievich 1930 [objective synonym]
†Gyriabrus latidens Rusconi 1945
†Gyriabrus quadratus Rusconi 1945
†Gyriabrus royoi Stirton 1947
G. †Josephoartigasia Mones 2007
+
†Josephoartigasia magna Mones 2007
+
Invalid names: Artigasia magna Francis and Mones 1966 [replaced]
†Josephoartigasia monesi Rinderknecht and Blanco 2008
Invalid names: Artigasia Francis and Mones 1966 [replaced]
G. †Olenopsis Ameghino 1889
+
†Olenopsis typicus Ameghino 1889
†Olenopsis uncinus Ameghino 1889
G. †Paranamys Kraglievich 1934
+
†Paranamys typicus Ameghino 1889
G. †Pentastylodon Alvarez 1947
G. †Pentastylomys Kraglievich 1926
Subfm. †Potamarchinae Kraglievich 1926
+
G. †Potamarchus Burmeister 1885
+
†Potamarchus adamiae Kerber et al. 2016
†Potamarchus murinus Burmeister 1885
G. †Pseudopotamarchus Kerber et al. 2016
+
†Pseudopotamarchus villanuevai Kerber et al. 2016
G. †Protomegamys Kraglievich 1932
G. †Pseudosigmomys Kraglievich 1931
G. †Rusconia Kraglievich 1931
+
†Rusconia crassidens Kraglievich 1931
G. †Scleromys Ameghino 1887
+
†Scleromys angustus Ameghino 1887
†Scleromys colombianus Fields 1957
†Scleromys osbornianus Ameghino 1894
+
Invalid names: Neoreomys insulatus Ameghino 1889 [synonym]
†Scleromys quadrangulatus Kramarz 2006
†Scleromys schurmanni Stehlin 1940
G. †Simplimus Ameghino 1904
+
†Simplimus indivisus Ameghino 1904
G. †Telicomys Kraglievich 1926
+
†Telicomys amazonensis Frailey 1986
†Telicomys giganteus Ameghino 1904
†Telicomys gigantissimus Ameghino 1908
G. †Telodontomys Kraglievich 1931
+
†Telodontomys compressidens Kraglievich 1931
G. †Tetrastylomys Kraglievich 1926
G. †Garridomys Kramarz et al. 2013
+
†Garridomys curunuquem Kramarz et al. 2013
Fm. Heptaxodontidae Anthony 1917
+
G. †Amblyrhiza Cope 1868
+
†Amblyrhiza inundata Cope 1868
G. †Clidomys Anthony 1920
+
†Clidomys osborni Anthony 1920
G. †Elasmodontomys Anthony 1916
+
†Elasmodontomys obliquus Anthony 1916
G. †Quemisia Miller 1929
+
†Quemisia gravis Miller 1929
G. †Xaymaca MacPhee and Flemming 2003
+
†Xaymaca fulvopulvis MacPhee and Flemming 2003
G. †Loncolicu Vucetich et al. 2015
+
†Loncolicu tretos Vucetich et al. 2015
G. †Maquiamys Boivin et al. 2019
+
†Maquiamys praecursor Boivin et al. 2019
+
Invalid names: Scleromys praecursor Boivin et al. 2017 [objective synonym]
G. †Microscleromys Walton 1990
+
Fm. †Neoepiblemidae Kraglievich 1926
+
G. †Doryperimys Kramarz et al. 2015
+
†Doryperimys olsacheri Kramarz et al. 2015
G. †Neoepiblema Ameghino 1889
+
†Neoepiblema acreensis Bocquentin et al. 1990
†Neoepiblema horridula Ameghino 1886
+
Invalid names: Neoepiblema ambrosettianus Ameghino 1889 [synonym]
Invalid names: Epiblema Ameghino 1886 [synonym], Euphilus Ameghino 1889 [synonym]
G. †Perimys Ameghino 1887
+
†Perimys ameghinoi Scott 1905
†Perimys dissimilis Ameghino 1902
†Perimys erutus Ameghino 1887
+
Invalid names: Perimys angulatus Ameghino 1891 [synonym], Perimys diminutus Ameghino 1894 [synonym], Perimys procerus Ameghino 1889 [synonym], Perimys reflexus Ameghino 1894 [synonym], Perimys scalaris Ameghino 1891 [synonym], Sphodromys scalaris Ameghino 1887 [synonym]
†Perimys incavatus Ameghino 1902
†Perimys intermedius Kramarz 2002
†Perimys onustus Ameghino 1887
+
Invalid names: Perimys impactus Ameghino 1894 [objective synonym], Perimys pacificus Ameghino 1894 [objective synonym], Perimys perpinguis Ameghino 1891 [objective synonym], Perimys planaris Ameghino 1891 [objective synonym]
†Perimys puellus Ameghino 1891
+
Invalid names: Perimys oemulus Ameghino 1894 [objective synonym], Perimys pueraster Ameghino 1891 [objective synonym]
†Perimys scalabrinianus Ameghino 1889
†Perimys transversus Ameghino 1902
†Perimys zonatus Ameghino 1887
Invalid names: Perimys incurvus Ameghino 1902 [nomen nudum], Sphiggomys Ameghino 1887 [synonym]
G. †Phoberomys Kraglievich 1926
+
†Phoberomys bordasi Patterson 1942
†Phoberomys burmeisteri Kraglievich 1926
+
Invalid names: Euphilus burmeisteri Ameghino 1891 [synonym], Phoberomys insolita Kraglievich 1940 [synonym], Phoberomys lozanoi Kraglievich 1940 [synonym], Phoberomys minima Kraglievich 1940 [synonym], Phoberomys praecursor Kraglievich 1932 [synonym]
†Phoberomys gyulavarii Kretzoi and Voros 1989
†Phoberomys pattersoni Bondesio and Bocquentin Villanueva 1988
+
Invalid names: Dabbenea pattersoni Mones 1980 [synonym]
Invalid names: Dabbenea Kraglievich 1926 [synonym], Perumys Kretzoi and Voros 1989 [synonym]
G. †Niedemys Kerber et al. 2016
+
†Niedemys piauiensis Kerber et al. 2016
G. †Saremmys Busker et al. 2019
+
†Saremmys ligcura Busker et al. 2019
G. †Ucayalimys Boivin et al. 2017
+
†Ucayalimys amahuacencis Arnal et al. 2022
†Ucayalimys crassidens Boivin et al. 2017
Superfm. Erethizontoidea Bonaparte 1845
+
G. †Eosteiromys Ameghino 1902
+
†Eosteiromys annectens Ameghino 1901
†Eosteiromys homogenidens Ameghino 1902
†Eosteiromys segregatus Ameghino 1902
Fm. Erethizontidae Bonaparte 1845 [porcupine]
+
G. †Branisamyopsis Candela 2003
+
†Branisamyopsis australis Candela 2003
G. †Cholamys Pérez et al. 2018
+
†Cholamys tetralophodonta Pérez et al. 2018
G. Coendou Lacépède 1799 [prehensile-tailed porcupine]
+
Coendou laenatus Thomas 1903
†Coendou magnus Lund 1839
Coendou prehensilis Linnaeus 1758
Invalid names: Echinoprocta Gray 1865 [synonym], Sphiggurus Cuvier 1825 [synonym]
G. †Eopululo Frailey and Campbell, Jr 2004
+
†Eopululo wigmorei Frailey and Campbell, Jr 2004
G. Erethizon Cuvier 1822 [North American porcupine]
+
†Erethizon bathygnathum Wilson 1935
+
Invalid names: Coendou stirtoni White 1968 [synonym]
†Erethizon cascoensis White 1970
Erethizon dorsatum Linnaeus 1758 [North American porcupine]
+
Invalid names: Coendou cumberlandicus White 1970 [synonym], Erethizon cloacinum Cope 1871 [synonym], Erethizon godfreyi Allen 1904 [synonym]
†Erethizon kleini Frazier 1981
†Erethizon poyeri Hulbert, Jr. 1997
G. †Hyposteiromys Patterson 1958
G. †Hypsosteiromys Patterson 1958
+
†Hypsosteiromys axiculus Ameghino 1902
†Hypsosteiromys nectus Ameghino 1902
+
Invalid names: Steiromys tabulatus Ameghino 1902 [synonym]
G. †Microsteiromys Walton 1990
+
†Microsteiromys jacobsi Walton 1990
G. †Palaeosteiromys Boivin et al. 2017
+
†Palaeosteiromys amazonensis Boivin et al. 2017
G. †Paradoxomys Ameghino 1885
+
†Paradoxomys cancrivorus Ameghino 1885
†Paradoxomys patagonicus Ameghino 1889
G. †Parasteiromys Ameghino 1904
+
†Parasteiromys friantae Candela 1999
†Parasteiromys uniformis Ameghino 1904
G. †Protosteiromys Wood and Patterson 1959
+
†Protosteiromys asmodeophilus Wood and Patterson 1959
†Protosteiromys medianus Ameghino 1903
†Protosteiromys pattersoni Pérez et al. 2018
Invalid names: Erethizontinae Thomas 1897 [empty]
G. †Kichkasteiromys Boivin et al. 2018
+
†Kichkasteiromys raimondii Boivin et al. 2018
G. †Nuyuyomys Boivin et al. 2021
+
†Nuyuyomys chinqaska Boivin et al. 2021
G. †Plesiosteiromys Boivin et al. 2017
+
†Plesiosteiromys newelli Boivin et al. 2017
G. †Shapajamys Boivin et al. 2018
+
†Shapajamys labocensis Boivin et al. 2018
†Shapajamys minor Arnal et al. 2022
G. †Steiromys Ameghino 1887
+
†Steiromys detentus Ameghino 1887
†Steiromys duplicatus Ameghino 1887
†Steiromys intermedius Scott 1905
†Steiromys principalis Ameghino 1901
†Steiromys pseudonectus Bordas 1939
†Steiromys segregatus Ameghino 1902
Superfm. Octodontoidea Waterhouse 1839
+
Fm. Abrocomidae Miller and Gidley 1918 [chinchilla rat]
+
G. †Abrocoma Waterhouse 1837
+
†Abrocoma antiqua Rovereto 1914
G. †Protabrocoma Kraglievich 1927
+
†Protabrocoma antiqua Rovereto 1914
G. †Acarechimys Patterson 1965
+
†Acarechimys constans Ameghino 1887
†Acarechimys gracilis Ameghino 1891
+
Invalid names: Acarechimys pascuali Verzi et al. 2017 [objective synonym], Acarechimys pulchellus Ameghino 1902 [objective synonym]
†Acarechimys leucotheae Vucetich et al. 2015
†Acarechimys minutissimus Ameghino 1887
+
Invalid names: Sciamys tenuissimus Ameghino 1894 [synonym], Stichomys diminutus Ameghino 1891 [synonym]
†Acarechimys minutus Patterson and Pascual 1967
+
Invalid names: Acaremys minutus Ameghino 1887 [objective synonym]
Invalid names: Ameghinomys Verzi et al. 2017 [objective synonym]
Fm. †Acaremyidae Wood 1949
+
G. †Acaremys Ameghino 1887
+
†Acaremys major Scott 1905
†Acaremys messor Ameghino 1889
†Acaremys minutissimus Ameghino 1887
†Acaremys murinus Ameghino 1887
+
Invalid names: Acaremys karaikensis Ameghino 1891 [synonym]
†Acaremys preminutus Bordas 1939
†Acaremys scagliai Patterson 1971
†Acaremys tricarinatus Ameghino 1894
G. †Galileomys Vucetich and Kramarz 2003
+
†Galileomys antelucanus Vucetich and Kramarz 2003
†Galileomys baios Vucetich et al. 2015
†Galileomys colloncurensis Vucetich and Kramarz 2003
†Galileomys eurygnathus Kramarz 2004
G. †Platypittamys Wood 1949
+
G. †Pseudoacaremys Arnal and Vucetich 2015
+
†Pseudoacaremys kramarzi Arnal and Vucetich 2015
G. †Adelphomys Ameghino 1887
+
†Adelphomys candidus Ameghino 1887
†Adelphomys eximius Ameghino 1894
Fm. Capromyidae Smith 1842 [hutia]
+
G. Capromys Desmarest 1822
+
†Capromys acevedo Borroto-Páez et al. 2012
+
Invalid names: Macrocapromys acevedoi Arredondo 1958 [objective synonym]
†Capromys latus Varona and Arredondo 1979
Capromys pilorides Say 1822 [Cuban hutia]
+
Invalid names: Capromys fournieri Desmarest 1822 [synonym]
Invalid names: Macrocapromys Arredondo 1958 [objective synonym]
G. Geocapromys Chapman 1901
+
†Geocapromys columbianus Chapman 1982
+
Invalid names: Geocapromys pleistocenicus Arredondo 1958 [synonym]
Subfm. †Isolobodontinae
+
G. †Zazamys MacPhee and Iturralde-Vinent 1995
+
†Zazamys veronicae MacPhee and Iturralde-Vinent 1995
G. †Mesocapromys Varona 1970
+
†Mesocapromys kraglievichi Varona and Arredondo 1979
G. Plagiodontia Cuvier 1836
+
Plagiodontia aedium Cuvier 1836
Plagiodontia aedium bondi Turvey et al. 2015
†Plagiodontia araeum Ray 1964
+
Invalid names: Hyperplagiodontia stenocoronalis Rímoli 1977 [synonym]
G. †Caviocricetus Vucetich and Verzi 1996
+
†Caviocricetus guenekko McGrath et al. 2023
†Caviocricetus lucasi Vucetich and Verzi 1996
G. †Changquin Vucetich et al. 2014
+
†Changquin woodi Vucetich et al. 2014
G. †Chasichimys Pascual 1967
+
†Chasichimys bonaerense Pascual 1967
†Chasichimys scagliai Pascual 1967
Invalid names: Pattersomys Pascual 1967 [synonym]
Fm. Ctenomyidae Lesson 1842
+
G. †Actenomys Burmeister 1888
+
†Actenomys priscus Owen 1840
+
Invalid names: Ctenomys priscus Owen 1840 [replaced]
Invalid names: Dicoelophorus Ameghino 1888 [nomen oblitum]
G. †Chasicomys Pascual 1967
+
†Chasicomys octodontiforme Pascual 1967
G. †Ctemys
G. Ctenomys de Blainville 1826
+
†Ctenomys avitus De Santi et al. 2024
†Ctenomys bonariensis Gervais and Ameghino 1888
†Ctenomys brachyrhinus Ameghino 1902
†Ctenomys chapalmalensis Ameghino 1908
+
Invalid names: Ctenomys chapadmalensis Ameghino 1908 [objective synonym]
†Ctenomys connoveri Osgood 1946
†Ctenomys cotocaensis Azurduy 2005
†Ctenomys formosus Moreno 1888
†Ctenomys kraglievichi Rusconi 1930
+
Invalid names: Ctenomys praderii Mones and Castiglioni 1979 [objective synonym]
Ctenomys magellanicus Bennett 1836 [Magellanic tuco-tuco]
†Ctenomys rusconii De Santi et al. 2021
†Ctenomys subassentiens Ameghino 1902
†Ctenomys subquadratus Ameghino 1902
†Ctenomys thomasi Lucero et al. 2008
†Ctenomys uquiensis Verzi et al. 2010
†Ctenomys viarapaensis De Santi et al. 2020
Invalid names: Paractenomys Ameghino 1908 [synonym]
G. †Eucelophorus Ameghino 1908
+
†Eucelophorus chapalmalensis Ameghino 1908
†Eucelophorus zaratei Reig and Quintana 1992
G. †Megactenomys Rusconi 1930
G. †Praectenomys Villarroel 1975
+
†Praectenomys rhombidens Quintana 1994
+
Invalid names: Praectenomys vagus Villaroel 1975 [synonym]
G. †Willidewu Vucetich and Verzi 1991
+
†Willidewu esteparius Vucetich and Verzi 1991
G. †Xenodontomys Kraglievich 1927
+
†Xenodontomys ellipticus Kraglievich 1927
†Xenodontomys elongatus Verzi et al. 2003
†Xenodontomys simpsoni Kraglievich 1961
G. †Deseadomys Wood and Patterson 1959
+
†Deseadomys arambourgi Wood and Patterson 1959
†Deseadomys loomisi Wood and Patterson 1959
G. †Draconomys Vucetich et al. 2010
+
†Draconomys verai Vucetich et al. 2010
G. †Dudumus Arnal et al. 2014
+
†Dudumus berggreni McGrath et al. 2023
†Dudumus ruigomezi Arnal et al. 2014
Fm. Echimyidae Gray 1825 [spiny rat]
+
Subfm. †Adelphomyinae Patterson and Pascual 1968
+
G. †Prostichomys Kramarz 2001
+
†Prostichomys bowni Kramarz 2001
G. †Ricardomys Walton 1990
+
†Ricardomys longidens Walton 1990
G. Carterodon Waterhouse 1848
+
†Carterodon sulcidens Lund 1841
Subfm. Chaetomyinae Thomas 1897
+
G. Chaetomys Gray 1843
G. Clyomys Thomas 1916
+
†Clyomys riograndensis Hadler 2008
Subfm. Dactylomyinae Tate 1935
+
G. Thrinacodus Günther 1879
G. Dactylomys Geoffroy 1838 [bamboo rat]
G. †Dicolpomys Winge 1887
+
†Dicolpomys fossor Winge 1887
G. Diplomys Thomas 1916
Subfm. Echimyinae Gray 1825
+
G. Callistomys Emmons and Vucetich 1998
+
Callistomys pictus Pictet 1843 [painted tree-rat]
G. Echimys Cuvier 1809 [spiny tree-rat]
+
Echimys chrysurus Zimmermann 1780 [white-faced Spiny tree-rat]
+
Invalid names: Echimys cristatus Desmarest 1817 [synonym]
Echimys grandis Wagner 1845
Echimys paleaceus Olfers 1818
Echimys saturnus Thomas 1928 [dark spiny tree-rat]
Echimys vieirai Iack-Ximenes et al. 2005 [Viera's spiny tree-rat]
Invalid names: Loncheres Illiger 1811 [synonym]
G. Makalata Husson 1978
+
Makalata armata Geoffroy 1838
Makalata carrikeri Allen 1911
Makalata castanea Allen and Chapman 1897
Makalata didelphoides Desmarest 1817 [Brazilian spiny tree-rat]
Makalata flavida Hollister 1914
Makalata guianae Thomas 1888
Makalata longirostris Anthony 1921
Makalata macrura Wagner 1842
Makalata obscura Wagner 1840
Makalata occasius Thomas 1921
Makalata punctatus Thomas 1899
Makalata rhipidura Thomas 1928
Makalata semivillosa Geoffroy 1838 [speckled spiny tree-rat]
G. Phyllomys Lund 1839 [Atlantic tree-rat]
Subfm. †Eumysopinae Rusconi 1935
+
G. †Palaeoechimys Spillmann 1949
G. †Proclinodontomys Candela et al. 2020
+
†Proclinodontomys dondasi Candela et al. 2020
G. †Ullumys Olivares et al. 2017
+
†Ullumys intermedius Rovereto 1914
†Ullumys pattoni Olivares et al. 2017
G. †Eumysops Ameghino
+
†Eumysops cavioides Ameghino 1908
†Eumysops chapalmalensis Ameghino 1908
†Eumysops formosus Ameghino 1906
+
Invalid names: Proaguti complicatus Ameghino 1908 [synonym], Proaguti gracilis Ameghino 1908 [synonym], Proaguti intermixtus Ameghino 1908 [synonym], Proatherura formosa Ameghino 1906 [synonym]
†Eumysops gracilis Ameghino 1908
†Eumysops laeviplicatus Ameghino 1888
+
Invalid names: Proaguti chapalmalensis Ameghino 1908 [synonym]
†Eumysops marplatensis Olivares and Verzi 2015
†Eumysops parodii Kraglievich 1945
†Eumysops robustus Ameghino 1889
Invalid names: Proaguti Ameghino 1908 [synonym]
G. Euryzygomatomys Goeldi 1901
G. †Gaimanomys Vucetich and Bond 1984
G. †Haplostropha Ameghino 1891
Subfm. †Heteropsomyinae Anthony 1917
+
G. †Boromys Miller 1916
+
†Boromys brachyblastus Tong 1997
†Boromys marydawsonae Tong 1997
†Boromys obtusus Tong 1997
†Boromys offella Miller 1916
†Boromys torrei Allen 1917
G. †Brotomys Miller 1916
G. Cercomys Cuvier 1829
+
†Cercomys cunicularius Cuvier 1829
G. †Heteropsomys Anthony 1916
+
†Heteropsomys antillensis Anthony 1917
†Heteropsomys insulans Anthony 1916
G. †Puertoricomys Woods 1989
+
†Puertoricomys corozalus Williams and Koopman 1951
G. †Hexolobodon Miller 1929
+
†Hexolobodon phenax Miller 1929
G. Hoplomys Allen 1908
G. †Isolobodon Allen 1916
+
†Isolobodon portoricensis Flemming and MacPhee 1999
G. Isothrix Wagner 1845 [brush-tailed rat]
+
Isothrix bistriata Wagner 1845 [yellow-crowned brush-tailed rat]
Isothrix bistriata negrensis Thomas 1920 [Rio Negro brush-tailed rat]
G. Lonchothrix Thomas 1920
G. †Maruchito Vucetich et al. 1993
+
†Maruchito trilofodonte Vucetich et al. 1993
G. Mesomys Wagner 1845 [spiny tree rat]
G. Myocastor Kerr 1782
+
†Myocastor brevirostris Rusconi 1944
Myocastor coypus Molina 1782 [coypu]
+
Invalid names: Mastonotus popelairi Wesmael 1841 [synonym], Myocastor perditus Ameghino 1902 [objective synonym], Myopotamus bonariensis Saint-Hilaire 1805 [synonym]
†Myocastor diligens Ameghino 1888
†Myocastor ipriscus Gervais and Ameghino 1880
Invalid names: Mastonotus Wesmael 1841 [synonym], Myopotamus Saint-Hilaire 1805 [synonym], Tramyocastor Rusconi 1936 [synonym]
G. †Pampamys Verzi et al. 1995
+
†Pampamys emmonsae Verzi et al. 1995
G. †Paradelphomys Patterson and Pascual 1968
+
†Paradelphomys fissus Patterson and Pascual 1968
G. †Proatherura Ameghino 1906
G. †Quebradahondomys Croft et al. 2011
+
†Quebradahondomys potosiensis Croft et al. 2011
G. †Reigechimys Verzi et al. 1994
+
†Reigechimys octodontiformis Verzi et al. 1994
†Reigechimys plesiodon Verzi et al. 1994
†Reigechimys simplex Sostillo et al. 2014
G. †Rhizoplagiodontia Woods 1989
+
G. †Theridomysops Vucetich 1995
+
†Theridomysops parvulus Rovereto 1914
Invalid names: Tribodon Ameghino 1887 [synonym]
G. †Thrichomys Trouessart 1881 [punaré]
G. Trinomys Thomas 1921
G. †Eodelphomys Frailey and Campbell, Jr 2004
+
†Eodelphomys almeidacomposi Frailey and Campbell, Jr 2004
G. †Eoespina Frailey and Campbell, Jr 2004
+
†Eoespina woodi Frailey and Campbell, Jr 2004
G. †Eosachacui Frailey and Campbell, Jr 2004
+
†Eosachacui lavocati Frailey and Campbell, Jr 2004
G. †Eosallamys Frailey and Campbell, Jr 2004
+
†Eosallamys paulacoutoi Frailey and Campbell, Jr 2004
†Eosallamys simpsoni Frailey and Campbell, Jr 2004
G. †Ethelomys Vucetich et al. 2015
G. Kannabateomys Jentink 1891
G. †Lapazomys Pérez et al. 2018
+
†Lapazomys hartenbergeri Pérez et al. 2018
G. †Leucokephalos Vucetich et al. 2015
+
†Leucokephalos maior Kramarz et al. 2015
†Leucokephalos zeffiae Vucetich et al. 2015
G. †Llitun Vucetich et al. 2015
+
†Llitun notuca Vucetich et al. 2015
G. †Loretomys Boivin et al. 2017
+
†Loretomys minutus Boivin et al. 2017
G. †Marisela Vucetich et al. 2010
G. †Mayomys Boivin et al. 2018
+
†Mayomys confluens Boivin et al. 2018
G. †Migraveramus Patterson and Wood 1982
+
†Migraveramus beatus Patterson and Wood 1982
†Migraveramus lavocati Pérez et al. 2018
†Migraveramus quispea Shockey et al. 2009
Fm. Myocastoridae Ameghino 1902
+
G. †Matyoscor Ameghino 1902
+
†Matyoscor perditus Ameghino 1902
G. †Paramyocastor Ameghino 1904
+
†Paramyocastor diligens Ameghino 1888
+
Invalid names: Isomyopotamus affinis Rovereto 1914 [synonym], Isomyopotamus albaniri Reig 1950 [synonym], Paramyocastor intactus Ameghino 1904 [synonym]
Invalid names: Isomyopotamus Rovereto 1914 [synonym]
G. †Strophostephanos Ameghino 1891
G. †Neophanomys Rovereto 1914
+
†Neophanomys biplicatus Rovereto 1914
+
Invalid names: Cercomys parvidens Kraglievich 1965 [synonym], Eumysops parvidens Rovereto 1914 [synonym]
†Neophanomys pristinus Verzi et al. 2011
†Neophanomys recens Verzi et al. 2011
Fm. Octodontidae Waterhouse 1839
+
G. †Eoctodon Ameghino 1902
+
†Eoctodon crassiusculus Ameghino 1904
†Eoctodon securiclatus Ameghino 1902
G. †Eucoelophorus Ameghino 1909
G. †Massoiamys Vucetich 1978
+
†Massoiamys obliquus Vucetich 1978
G. †Metacaremys Piñero et al. 2021
+
†Metacaremys calfucalel Piñero et al. 2021
†Metacaremys dimi Piñero et al. 2021
†Metacaremys primitiva Piñero et al. 2021
+
Invalid names: Cercomys primitiva Pascual 1967 [objective synonym], Chasicomys cangapoli Quintana 1995 [objective synonym]
Subfm. Octodontinae Waterhouse 1839
+
G. †Abalosia Reig and Quintana 1991
+
†Abalosia castellanosi Rusconi 1933
G. Octodon Bennett 1823 [degu]
+
Octodon degus Molina 1782 [degu]
G. †Sciamys Ameghino 1887
+
†Sciamys petisensis Arnal and Pérez 2013
†Sciamys principalis Ameghino 1887
†Sciamys robustus Ameghino 1894
†Sciamys varians Ameghino 1887
G. Spalacopus Wagler 1832 [coruro]
G. Tympanoctomys Yepes 1942 [plains viscacha rat]
+
†Tympanoctomys cordubensis Verzi et al. 2002
+
Invalid names: Pithanotomys cordubensis Ameghino 1889 [replaced]
G. Octodontomys Palmer 1903
G. Octomys Thomas 1920 [viscacha rat]
+
†Octomys rosiae Verzi et al. 2024
G. †Palaeoctodon Rovereto 1914
+
†Palaeoctodon simplicidens Rovereto 1914
G. †Phthoramys Ameghino 1887
G. †Phtoramys Ameghino 1887
+
†Phtoramys hidalguense Pascual et al. 1965
†Phtoramys homogenidens Ameghino 1887
†Phtoramys pulcher Rovereto 1914
G. †Pithanotomys Ameghino 1887
+
†Pithanotomys chapalmalensis Ameghino 1908
†Pithanotomys columnaris Ameghino 1887
†Pithanotomys intermedius Ameghino 1889
†Pithanotomys macer Ameghino 1888
†Pithanotomys orthorhynchus Ameghino 1908
†Pithanotomys similis Ameghino 1889
†Pithanotomys solisae Candela et al. 2023
G. †Plataeomys Ameghino 1881
+
†Plataeomys brevis Rovereto 1914
†Plataeomys elongatus Rovereto 1914
†Plataeomys innominatus Rovereto 1914
†Plataeomys scindens Ameghino 1889
G. †Pseudoplataeomys Kraglievich 1934
+
†Pseudoplataeomys formosus Kraglievich 1934
†Pseudoplataeomys innominatus Kraglievich 1934
G. †Paulacoutomys Vucetich et al. 1993
+
†Paulacoutomys paulista Vucetich et al. 1993
G. †Plesiacarechimys Vucetich and Vieytes 2006
+
†Plesiacarechimys koenigswaldi Vucetich and Vieytes 2006
G. Proechimys Allen 1899 [spiny rat]
+
†Proechimys ponderosus Rovereto 1914
G. †Prospaniomys Ameghino 1902
+
†Prospaniomys priscus Ameghino 1902
G. †Protacaremys Ameghino 1902
+
†Protacaremys adilos Vucetich et al. 2015
†Protacaremys amplus Ameghino 1904
†Protacaremys avunculus Ameghino 1902
†Protacaremys denisae Vucetich et al. 1993
†Protacaremys prior Ameghino 1902
+
Invalid names: Archaeocardia mustersiana Ameghino 1904 [synonym], Palaeocardia mater Ameghino 1902 [synonym]
Invalid names: Archaeocardia Cossman 1902 [synonym], Palaeocardia Ameghino 1902 [synonym]
G. †Protadelphomys Ameghino 1902
+
†Protadelphomys latus Ameghino 1902
+
Invalid names: Gaimanomys alwinea Vucetich and Bond 1984 [synonym]
G. †Sallamys Hoffstetter and Lavocat 1970
+
†Sallamys pascuali Hoffstetter and Lavocat 1970
†Sallamys woodi Pérez et al. 2018
G. †Selvamys Boivin et al. 2018
+
†Selvamys paulus Boivin et al. 2018
G. †Spaniomys Ameghino 1877
+
†Spaniomys biplicatus Ameghino 1894
†Spaniomys modestus Ameghino 1887
†Spaniomys riparius Ameghino 1887
G. †Stichomys Ameghino 1887
+
†Stichomys arenarus Ameghino 1894
†Stichomys planus Ameghino 1891
†Stichomys regius Ameghino 1894
†Stichomys regularis Ameghino 1887
G. †Vallehermosomys Vucetich et al. 2010
+
†Vallehermosomys mazzonii Vucetich et al. 2010
†Vallehermosomys merlinae Vucetich et al. 2010
G. †Xylechimys Patterson and Pascual 1968
+
†Xylechimys obliquus Patterson and Pascual 1968
G. †Pozomys Boivin et al. 2017
+
†Pozomys ucayaliensis Boivin et al. 2017
G. †Tacheria Krapovickas and Nasif 2011
+
†Tacheria troyana Krapovickas and Nasif 2011
G. †Tarapotomys Boivin et al. 2018
+
†Tarapotomys mayoensis Boivin et al. 2018
†Tarapotomys subandinus Boivin et al. 2018
G. †Vucetichimys Arnal et al. 2022
+
†Vucetichimys pretrilophodontia Arnal et al. 2022
Fm. †Zetamyidae Ferrusquia-Villafranca et al. 2018
+
G. †Protozetamys Ferrusquia-Villafranca et al. 2018
+
†Protozetamys mixtecus Ferrusquia-Villafranca et al. 2018
G. †Zetamys Martin 1974
+
†Zetamys nebraskensis Martin 1974
Invalid names: Luribayomys Lavocat 1976 [nomen vanum], Luribayomys masticator Lavocat 1976 [nomen vanum], Palmiramys Kraglievich 1932 [nomen vanum], Palmiramys waltheri Kraglievich 1932 [nomen vanum]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Maximum body mass: 4.22 kgs
Minimum body mass: 90 gs
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingo
Diet: herbivoreo
Reproduction: viviparoussubc
Created: 2005-08-26 14:04:46
Modified: 2005-08-26 16:04:46
Source: s = species, o = order, subc = subclass, c = class, subp = subphylum
References: Walton 1997, Hendy et al. 2009, Nowak 1999, Ji et al. 2002, Vizcaíno et al. 2010, Carroll 1988, Lillegraven 1979

Age range

Maximum range based only on fossils: base of the Bartonian to the top of the Holocene or 41.30000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 38.0 Ma

Collections (866 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Middle Eocene47.8 - 37.71Mongolia Advenimus sp. (127656)
Middle Eocene47.8 - 37.71Peru Cachiyacuy kummeli, Canaanimys sp., Caviomorpha indet. (176136) Caviomorpha indet. (176131 176139)
Middle Eocene47.8 - 37.71Peru (Loreto) Cachiyacuy contamanensis, Cachiyacuy kummeli (176140) Caviomorpha indet. (176151)
Middle Eocene - Late/Upper Eocene47.8 - 33.9Peru Eoespina sp., Caviomorpha genre et espèce indet. 1 (207065)
Bartonian41.3 - 38.0Mexico (Oaxaca) Protozetamys mixtecus (197504)
Priabonian - Rupelian38.0 - 28.1Peru (Loreto) Eoespina sp., Chachapoyamys kathetos, Cachiyacuy contamanensis, Cachiyacuy kummeli, Canaanimys maquiensis, Eobranisamys sp. (144474)
Late/Upper Eocene37.2 - 33.9Peru (San Martín) Eoincamys valverdei, Tarapotomys subandinus (225589)
Late/Upper Eocene37.2 - 33.9Peru Balsayacuy huallagaensis, Chachapoyamys kathetos, Cachiyacuy kummeli, Canaanimys maquiensis, Caviomorpha indet. (207067) Balsayacuy huallagaensis, Chachapoyamys kathetos, Canaanimys maquiensis, Caviomorpha indet. (207066) Cachiyacuy contamanensis (207061) Caviomorpha genre et espèce indet. 2 (207060) Caviomorpha indet. (220600) Eoespina sp., Cachiyacuy contamanensis, Cachiyacuy kummeli (207062)
Late/Upper Eocene37.2 - 33.9Peru (San Martin) Eoincamys sp. 1, Caviomorpha indet., Eopululo wigmorei (225588)
Late/Upper Eocene - Early/Lower Oligocene37.2 - 28.4China (Henan) Boromys obtusus, Boromys brachyblastus (174738)
Late/Upper Eocene - Early/Lower Oligocene37.2 - 28.4Brazil (Acre) Cachiyacuy sp. 2, Eoincamys sp. 1 (230905)
Early/Lower Oligocene33.9 - 28.4Peru Adelphomyinae indet., Eoincamys valverdei, Eoincamys sp., Tarapotomys sp., Caviomorpha indet. (199561) Caviomorpha indet. 1, Caviomorpha indet. 2 (225590) Chinchilloidea indet., Mayomys confluens, Shapajamys labocensis, Eoincamys pascuali, Tarapotomys mayoensis (199559) Eoincamys pascuali (207064) Eoincamys sp. (207063) Selvamys paulus, Eoincamys valverdei, Eoincamys parvus, Tarapotomys subandinus, Tarapotomys subandius, Caviomorpha gen. et . sp. indet. 1, Caviomorpha gen. et . sp. indet. 2, Caviomorpha gen. et . sp. indet. 3 (199563)
Early/Lower Oligocene33.9 - 28.4Chile Eoviscaccia frassinettii, Dasyproctidae gen. et sp. nov. (38072)
Early/Lower Oligocene33.9 - 28.4Colombia (Putumayo) Eosteiromys sp. (145350)
Rupelian33.9 - 28.1Argentina (Chubut) Chinchilloidea indet., Draconomys verai, Vallehermosomys mazzonii, Vallehermosomys merlinae, Dasyproctidae indet., Eobranisamys indet., Caviomorpha gen. et sp. indet. 3, Caviomorpha gen. et sp. indet. 4 (176201)
Rupelian33.9 - 28.1Brazil (Acre) Eobranisamys romeropittmanae, Eoincamys pascuali, Eoincamys ameghinoi (230765)
Rupelian33.9 - 28.1Peru (Departamento de Ucayali) Ucayalimys amahuacencis, Eodelphomys almeidacomposi, Eosachacui lavocati, Eosallamys paulacoutoi, Eosallamys simpsoni, Eoespina woodi, Echimyidae C, Echimyidae A, Echimyidae B, Balsayacuy huallagaensis, Cachiyacuy contamanensis, Cachiyacuy kummeli, Vucetichimys pretrilophodontia, Eopululo wigmorei, Shapajamys minor, Canaanimys maquiensis, Eobranisamys romeropittmanae, Eobranisamys riverai, Eoincamys pascuali, Eoincamys ameghinoi, Agoutidae B, Agoutidae C, Agoutidae A, Pozomys ucayaliensis, Pozomys sp. nov.?, Eopicure kraglievichi (149523)
Rupelian - Chattian33.9 - 23.03Peru (Loreto) Chinchilloidea indet., Cachiyacuy contamanensis, Caviomorpha species 1, Eobranisamys sp., Canaanimys sp. (176129)
Rupelian - Chattian33.9 - 23.03Peru Eoincamys valverdei, Eoincamys parvus, Tarapotomys subandinus, Tarapotomys sp., Caviomorpha indet. (199560) Kichkasteiromys raimondii, Eoincamys valverdei, Eoincamys parvus, Tarapotomys subandinus, Tarapotomys sp., Caviomorpha gen. et . sp. indet. 1, Caviomorpha indet. new genus new species, Caviomorpha indet. 1, Caviomorpha indet. 5 (199562)
Arikareean29.5 - 18.5USA (Nebraska) Zetamys nebraskensis (17567)