(Yunguisaurus_liae,(Pistosaurus_skull,(Pistosaurus_postcranium,(Augustasaurus_hagdorni,(Bobosaurus_forojuliensis,((Anningasaura_lymense,(Macroplata_tenuiceps,(Avalonnectes_arturi,((Eurycleidus_arcuatus,Atychodracon_megacephalus),(Archaeonectrus_rostratus,(Meyerasaurus_victor,((Maresaurus_coccai,Borealonectes_russelli),(Rhomaleosaurus_thorntoni,(Rhomaleosaurus_cramptoni,Rhomaleosaurus_zetlandicus))))))))),((Eoplesiosaurus_antiquior,(Stratesaurus_taylori,(Plesiosaurus_dolichodeirus,(Westphaliasaurus_simonsensii,((Eretmosaurus_rugosus,(Seelyosaurus_guilelmiimperatoris,(Microcleidus_tournemirensis,(Microcleidus_brachypterygius,Microcleidus_homalospondylus)))),(Plesiopterys_wildi,((((Cryptoclidus_eurymerus,(Kimmerosaurus_langhami,Tatenectes_laramiensis)),(Tricleidus_seeleyi,(Muraenosaurus_leedsii,Picrocleidus_beloclis))),((Pantosaurus_striatus,Plesiosaurus_mansellii),((Colymbosaurus_trochanterius,Abyssosaurus_nataliae),(Djupedallia_engeri,Spitrasaurus_spp)))),(((((Umoonasaurus_demoscyllus,Nichollssaura_borealis),(Leptocleidus_capensis,Leptocleidus_superstes)),(Vectocleidus_pastorum,Brancasaurus_brancai)),(Edgarosaurus_muddi,(Thililua_longicollis,(Palmulasaurus_quadratus,(Pahasapasaurus_haasi,((Plesiopleurodon_wellesi,Richmond_pliosaur),(Polycotylus_latipinnis,(Trinacromerum_bentonianum,(Dolichorhynchops_osborni,Dolichorhynchops_bonneri))))))))),(Eromangasaurus_australis,(Gronausaurus_wegneri,(Speeton_Clay_plesiosaurian,((Wapuskanectes_betsynichollsae,Callawayasaurus_colombiensis),((Futabasaurus_suzukii,(Kaiwhekea_katiki,Aristonectes_parvidens)),(Libonectes_morgani,Hydrotherosaurus_alexandrae)))))))))))))),(Thalassiodracon_hawkinsii,((Hauffiosaurus_tomistomimus,(Hauffiosaurus_longirostris,Hauffiosaurus_zanoni)),(Attenborosaurus_conybeari,(Anguanax_zignoi,(Marmornectes_candrewi,(Peloneustes_philarchus,(Pliosaurus_andrewsi,(Simolestes_vorax,(Liopleurodon_ferox,((Gallardosaurus_iturraldei,(Pliosaurus_irgisensis,(Pliosaurus_brachyspondylus,(Pliosaurus_westburyensis,(((Pliosaurus_funkei,Pliosaurus_carpenteri),(Pliosaurus_cf_kevani,Pliosaurus_kevani)),(Pliosaurus_macromerus,(Pliosaurus_brachydeirus,Pliosaurus_rossicus))))))),(Makhaira_rossica,(Luskhan_itilensis,(Stenorhynchosaurus_munozi,(Kronosaurus_queenslandicus,(Polyptychodon_sp,(QM_F51291,(Megacephalosaurus_eulerti,(Brachauchenius_lucasi,Brachauchenius_MNA)))))))))))))))))))))))));