(Yunguisaurus_liae,(Pistosaurus_postcranium,Pistosaurus_skull,Augustasaurus_hagdorni,Bobosaurus_forojuliensis,(Macroplata_tenuiceps,Anningasaura_lymense,Stratesaurus_taylori,Avalonnectes_arturi,Thalassiodracon_hawkinsii,Attenborosaurus_conybeari,Eopleiosaurus_antiquior,(Eurycleidus_arcuatus,Rhomaleosaurus_megacephalus,Archaeonectrus_rostratus,((Meyerasaurus_victor,Rhomaleosaurus_thorntoni,(Rhomaleosaurus_cramptoni,Rhomaleosaurus_zetlandicus)),(Maresaurus_coccai,Borealonectes_russelli))),((Hauffiosaurus_longirostris,Hauffiosaurus_tomistomimus,Hauffiosaurus_zanoni),(Marmornectes_candrewi,(Peloneustes_philarchus,(Pliosaurus_andrewsi,(Simolestes_vorax,(Liopleurodon_ferox,((Pliosaurus_funkei,Pliosaurus_westburyensis,Pliosaurus_brachydeirus,Gallardosaurus_iturraldei,Liopleurodon_rossicus,Pliosaurus_irgisensis),(Kronosaurus_MCZ_1285,Brachauchenius_lucasi,Brachauchenius_MNA_V9433,QM_F51291)))))))),(Plesiosaurus_dolichodeirus,(Eretmosaurus_rugosus,(Westphaliasaurus_simonsensii,((Seelyosaurus_guilelmiimperatori,(Microcleidus_tournemirensis,(Microcleidus_brachypterygius,Microcleidus_homalospondylus))),(Plesiopterys_wildi,(((Cryptoclidus_eurymerus,(Kimmerosaurus_langhami,Tatenectes_laramiensis)),(Tricleidus_seeleyi,(Muraenosaurus_leedsii,Picrocleidus_beloclis)),((Pantosaurus_striatus,Plesiosaurus_mansellii),(Djupedallia_engeri,Spitrasaurus_spp,(Colymbosaurus_trochanterius,Abyssosaurus_nataliae)))),(Speeton_Clay_plesiosaurian,Wapuskanectes_betsynichollsae,Callawayasaurus_colombiensis,Eromangasaurus_australis,Tuarangisaurus_keyesi,Mauisaurus_haasti,Futabasaurus_suzukii,Zarafasaura_oceanis_Lomax,Libonectes_atlasense,Libonectes_morgani,Hydrotherosaurus_alexandrae,Elasmosaurus_platyurus,Albertonectes_vanderveldei,Terminonatator_pontiexensis,Kawanectes_lafquenianum,Vegasaurus_molyi,Gronausaurus_wegneri,(Brancasaurus_brancai,(Vectocleidus_pastorum,(Nichollssaura_borealis,(Umoonasaurus_demoscyllus,Leptocleidus_capensis,Leptocleidus_superstes,Hastanectes_valdensis)),(Edgarosaurus_muddi,(Plesiopleurodon_wellesi,Richmond_pliosaur_QM_F18041)))),(Kaiwhekea_katiki,Aristonectes_quiriquinensis,Aristonectes_parvidens),(MOR_3072,(Styxosaurus_snowii,Hydralmosaurus_serpentinus_Styxosaurus_sp))))))))))));