Classification of Montgelard et al. 2002
Or. Rodentia Bowdich 1821 [rodent]
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Superfm. Anomaluroidea Gervais 1849
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Fm. Anomaluridae Gill 1872 [scaly-tailed squirrel]
Fm. Pedetidae Gray 1825 [springhare]
Superfm. Castoroidea Gray 1821
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Fm. Castoridae Gray 1821 [beaver]
Fm. †Eutypomyidae Miller and Gidley 1918
Unr. Ctenohystrica Huchon et al. 2000
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Fm. Ctenodactylidae Gervais 1853 [gundi]
Subor. Hystricognathi Tullberg 1899
Superfm. Geomyoidea Bonaparte 1845
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Fm. †Eomyidae Winge 1887
Fm. Geomyidae Bonaparte 1845 [pocket gopher]
Fm. Heteromyidae Gray 1868
Infraor. Myodonta Schaub 1958
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Superfm. Sciuroidea
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Fm. Aplodontidae Brandt 1855 [mountain beaver]
Fm. Sciuridae Gray 1821 [squirrel]
Invalid names: Myomorpha Brandt 1855 [invalid subgroup], Protrogomorpha Zittel 1893 [invalid subgroup], Sciurognathi Tullberg 1899 [invalid subgroup], Sciuromorpha Brandt 1855 [invalid subgroup]