Miosiren

Miosiren is an extinct genus of manatee from the Early Miocene of southeastern England (Suffolk) and Antwerp, Belgium. Two species are recognized, M. canhami and M. kocki.

Phylogeny
A 2014 cladistic analysis of extinct sirenians recovered Miosiren as a close relative of Anomotherium in a separate subfamily within Trichechidae, Miosireninae.