Category
page 1Trichechidae

Trichechidae
Trichechidae is a family of sirenians that includes all living manatees and several extinct genera.
Miosiren
Miosiren is an extinct genus of manatee from the Early Miocene of southeastern England (Suffolk) and Antwerp, Belgium.
thumb|left|M. canhami fossils
Two species are recognized, M. canhami and M. kocki.
Potamosiren
Potamosiren is an extinct genus of manatee from the Middle Miocene (Laventan) Honda Group of Colombia.
Anomotherium
Anomotherium is an extinct genus of manatee that lived in the shallow seas of what is now Northern Germany. Its closest relative is Miosiren. Fossils of the genus have been found in the Bohlen and Doberg Formations of Germany.
Ribodon
Ribodon is an extinct genus of manatee that lived around South America (Ituzaingó Formation, then described as Entrerriana Formation, Argentina, Solimões Formation, Brazil and Urumaco Formation, Urumaco, Venezuela) during the Tortonian (Mayoan to Huayquerian in the South American land mammal ages). The type species is R. limbatus.