Classification of MacFadden et al. 1993
Or. Rodentia Bowdich 1821 [rodent]
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Subor. Caviomorpha Wood and Patterson 1955 [caviomorph]
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Or. †Notoungulata Roth 1903 [notoungulate]
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Fm. †Mesotheriidae Alston 1876
Fm. †Toxodontidae Ameghino 1889
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Or. †Litopterna Ameghino 1889
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Or. Edentata Cuvier 1798
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Subor. Xenarthra Cope 1889 [edentate]
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Infraor. Pilosa Flower 1883
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Fm. †Megatheriidae Gray 1821
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Fm. Cingulata Illiger 1811
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Fm. †Glyptodontidae Burmeister 1879 [glyptodon]
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G. †Paraglyptodon Castellanos 1932
G. †Plohophorus Ameghino 1887