Classification of Avilla and Mothé 2021
Unr. Paenungulata Simpson 1945
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Unr. †Sudamericungulata Avilla and Mothé 2021
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Or. †Astrapotheria Lydekker 1894
Or. †Notoungulata Roth 1903 [notoungulate]
Subor. †Pyrotheria Ameghino 1895
Or. †Xenungulata Paula Couto 1952
Unr. †Panperissodactyla Welker et al. 2015
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Or. †Panameriungulata de Muizon and Cifelli 2000
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Fm. †Didolodontidae Simpson 1934
Subor. †Litopterna Ameghino 1889