Classification of Solórzano and Núñez-Flores 2021

Fm. †Toxodontidae Scott 1873
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G. †Haplodontherium Ameghino 1885
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Haplodontherium wildei Ameghino 1885
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Invalid names: Haplodontherium limun Ameghino 1886 [synonym], Toxodon paranensis D'Orbigny 1842 [synonym], Toxodontherium compressum Ameghino 1883 [synonym], Toxodontherium listai Cozzuol 2006 [synonym], Toxodontherium reverendum Ameghino 1889 [synonym]
G. †Toxodontherium Ameghino 1883
G. †Brandmayria Cabrera 1935
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Brandmayria simpsoni Cabrera 1935
Eopachyrucos pliciformis Simpson 1967
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Invalid names: Eopachyrucos pliciferus Ameghino 1901 [objective synonym]
Oldfieldthomasia debilitata Ameghino 1901
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Invalid names: Oldfieldthomasia transversa Ameghino 1901 [synonym]
Stenotephanos plicidens Ameghino 1885
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Invalid names: Eutomodus elautus Ameghino 1886 [synonym], Palaeotoxodon virgatus Ameghino 1886 [synonym]
Nesodon imbricatus Owen 1846
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Invalid names: Nesodon cornutus Scott 1912 [synonym]
Periphragnis palmeri Roth 1904
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Invalid names: Periphragnis cristatus Roth 1904 [synonym]