Classification of Deraco and GarcÍa-López 2016
Or. †Notoungulata Roth 1903 [notoungulate]
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Fm. †Notostylopidae Ameghino 1897
Subor. †Toxodontia Ameghino 1887
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Fm. †Homalodotheriidae Gregory 1910
Fm. †Leontiniidae Ameghino 1894
Fm. †Notohippidae Ameghino 1894
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Fm. †Toxodontidae Ameghino 1889