(Proganochelys_quenstedti,(Chelidae,(Pelomedusidae,(Podocnemididae,(Cearachelys_placidoi,((Azabbaremys_moragjonesi,(Labrostochelys_galkini,((Taphrosphys_congolensis,(Taphrosphys_sulcatus,Taphrosphys_ippolitoi)),(Rhothonemys_brinkmani,(Phosphatochelys_tedfordi,Ummulisani_rutgersensis))))),(Nigeremys_gigantea,Arenila_krebsi)),(Zolhafah_bella,Rosasia_soutoi,Algorachelus_peregrinus,(Polysternon_provinciale,(Foxemys_trabanti,(Foxemys_mechinorum,Puentemys_mushaisaensis))),(Araiochelys_hirayamai,(Bothremys_arabicus,Bothremys_kellyi,(Chedighaii_hutchisoni,Chedighaii_barberi),(Bothremys_maghrebiana,Bothremys_cooki)))))))));