Classification of Hamilton et al. 2001

Fm. Platanistidae Gray 1846
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G. †Pomatodelphis Allen 1921
G. †Zarhachis Cope 1868
Fm. Pontoporiidae Gray 1870
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G. †Brachydelphis Muizon 1988
G. †Parapontoporia Barnes 1984
G. †Pliopontos Muizon 1983
G. †Pontistes Burmeister 1885
Fm. Iniidae Gray 1846
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G. †Goniodelphis Allen 1941
G. †Ischyrorhynchus Ameghino 1891
G. †Saurocetes Burmeister 1871
Fm. Lipotidae Zhou et al. 1978
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G. †Prolipotes Zhou et al. 1984