Classification of the family Trichechinae

Fm. Trichechinae Gray 1825
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G. †Potamosiren Reinhart 1951
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Invalid names: Metaxytherium ortegense Kellogg 1966 [synonym]
G. †Ribodon Ameghino 1883
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Ribodon limbatus Ameghino 1883
G. Trichechus Linnaeus 1758 [manatee]
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Trichechus inunguis Natterer 1883 [Amazonian manatee]
Trichechus manatus Linnaeus 1758
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Invalid names: Manatus americanus De Kay 1842 [synonym], Manatus australis Retzius 1794 [synonym], Manatus koellikeri Trouessart 1904 [synonym]
Trichechus senegalensis Link 1795 [West African manatee]
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Invalid names: Manatus senegalensis Desmarest 1817 [synonym]
Invalid names: Halipaedisca Gistel 1848 [synonym], Manatus Brunnich 1772 [synonym], Neodermus Rafinesque 1815 [synonym], Oxystomus Fischer von Waldheim 1803 [synonym]
Invalid names: Trichechina Bonaparte 1850 [empty]