(Chelydra_serpentina,((Notoemys_laticentralis,Platychelys_obendorferi),(Araripemys_barretoi,((Podocnemis_sextuberculata,Podocnemis_expansa),(Pseudemydura_umbrina,(Elseya_dentata,(Emydura_macquarii,(Rheodytes_leukops,(Myuchelys_latisternum,(Platemys_platycephala,(((Chelus_fimbriatus,((Chelodina_colliei,Chelodina_expansa),((Hydromedusa_casamayorensis,(Hydromedusa_maximiliani,Hydromedusa_tectifera)),(Yaminuechelys_gasparinii,Yaminuechelys_maior,Yaminuechelys_nov_sp)))),((Acanthochelys_macrocephala,Acanthochelys_radiolata),(Mesoclemmys_nasuta,Mesoclemmys_gibba))),(Phrynops_hilari,Phrynops_geoffroanus))))))))))));