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| Kingdom Animalia |
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Abrocomidae Miller and Gidley, 1918 -- valid |
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Agoutidae Gray, 1821 -- valid |
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Anomaluridae Gervais, 1849 -- valid |
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Anomaluromorpha Bugge, 1974 -- valid |
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Bathyergidae Waterhouse, 1841 -- valid |
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Caniformia Kretzoi, 1938 -- valid -- dog-like carnivores |
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Capromyidae Smith, 1842 -- valid -- capromyid rodents |
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Catoptera Rafinesque, 1815 -- invalid |
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Caviidae Gray, 1821 -- valid |
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Chinchillidae Bennett, 1833 -- valid |
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Ctenodactylidae Gervais, 1853 -- valid |
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Ctenomyidae Lesson, 1842 -- invalid |
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Ctenomyini Lesson, 1842 -- valid |
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Ctenomys Blainville, 1826 -- valid |
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Dasyprocta Illiger, 1811 -- valid |
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Dasyproctidae Bonaparte, 1838 -- invalid |
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Dasyproctinae Gray, 1825 -- valid |
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Dinomyidae Troschel, 1874 -- valid |
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Echimyidae Gray, 1825 -- valid |
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Erethizontidae Bonaparte, 1845 -- valid -- New World porcupines |
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Feliformia Kretzoi, 1945 -- valid -- cat-like carnivores |
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Globiceps Flower, 1884 -- invalid |
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Hydrochaeridae Gray, 1825 -- valid |
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Hyperoodontidae Gray, 1846 -- valid -- beaked whales |
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Hystricidae G. Fischer, 1817 -- valid |
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Hystricognatha Woods, 1976 -- valid |
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Hystricognathi Tullberg, 1899 -- valid -- hystricognath rodents |
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Myocastor Kerr, 1792 -- valid -- nutrias |
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Myocastoridae Ameghino, 1902 -- invalid -- nutrias |
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Myocastorinae Ameghino, 1902 -- valid |
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Myomorpha Brandt, 1855 -- valid -- mice, rats, rats, souris |
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Myoprocta Thomas, 1903 -- valid |
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Octodontidae Waterhouse, 1840 -- valid |
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Pedetidae Gray, 1825 -- valid |
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Petromuridae Tullberg, 1899 -- valid |
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Sciuravida -- valid |
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Sciurognathi -- invalid |
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Sciuromorpha Brandt, 1855 -- valid -- squirrels |
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Thryonomyidae Pocock, 1922 -- valid |
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Ziphiidae Gray, 1865 -- invalid |
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