| Trichechidae Temporal range: Late Oligocene – Recent
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|---|---|
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| West Indian manatee (Trichechus manatus) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Sirenia |
| Family: | Trichechidae Gill 1872 |
| Genera | |
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See Text | |
Trichechidae is a family of sirenians that includes all living manatees and several extinct genera.