(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)),((Algorachelus_peregrinus,(Rosasia_soutoi,(Zolhafah_bella,(Araiochelys_hirayamai,((Chedighaii_hutchisoni,Chedighaii_barberi),(Bothremys_kellyi,(Bothremys_arabicus,(Bothremys_maghrebiana,Bothremys_cooki)))))))),(Polysternon_provinciale,(Foxemys_trabanti,(Foxemys_mechinorum,Puentemys_mushaisaensis))))))))));