Subfamily Hydromedusinae Baur 1893
PaleoDB taxon number: 377434
Parent taxon: Chelidae according to P. P. van Dijk et al. 2014
Sister taxa: Acanthochelys, Birlimarr, Chelinae, Chelodina, Chelodininae, Chelus, Chelymys antiqua, Chelymys arata, Elseya, Emydura, Hydraspis arenarius, Hydromedusa, Mendozachelys, Myuchelys, Naiadochelys patagonica, Pelecomastes ampla, Phrynops, Platemys, Platemys bergii, Platemys entreriana, Platemys holmbergii, Platemys mesopotamica, Platemys robusta, Platemys torrentium, Prochelidella, Pseudemydura, Rheodytes, Rionegrochelys, Trionyx argentina, Yaminuechelys, Hydraspis
Subtaxa: none