Family Rhytinidae Gill 1871 (sirenian)
Full reference: T. Gill. 1871. Arrangement of the Families of Mammals. Smithsonian Miscellaneous Collections 11(230):1-98
Parent taxon: Sirenia according to W. Turner 1912
Sister taxa: Dugongidae, Dugongoidea, Prorastomidae, Prorastomoidea, Protosirenidae, Trichechidae
Subtaxa: none
Ecology: aquatic herbivore