(Simosaurus_gaillardoti,(Cymatosaurus,(Augustasaurus_hagdorni,((BMNH_49202,BMNH_R_dot_1336,Plesiopterys_wildi,Plesiosaurus_dolichodeirus,Thalassiodracon_hawkinsi,(Cryptoclidus_eurymerus,(Muraenosaurus_leedsii,(Elasmosaurus_platyurus,(Hydrotherosaurus_alexandrae,(Callawayasaurus_colombiensis_H,Callawayasaurus_colombiensis_R,Callawayasaurus_colombiensis_comp)),(Libonectes_morgani,Terminonatator_pontiexensis))))),(Rhomaleosaurus_victor,(Rhomaleosaurus_megacephalus,(Macroplata_tenuiceps,(((Umoonasaurus_demoscyllus,(QM_F18041,(TMP_94_dot_122_dot_01,(Polycotylus_latipinnis,(Dolichorhynchops_osborni,Edgarosaurus_muddi))))),(Leptocleidus_capensis,Leptocleidus_superstes)),(Simolestes_vorax,(Liopleurodon_ferox,(Kronosaurus_queenslandicus,(Peloneustes_philarchus,Pliosaurus_brachyspondylus))))))))))));