(Archaeonectrus_rostratus,(Macroplatatenuiceps,(((Rhomaleosaurusmegacepha,(((OUMNH_J_dot_10337,(Thalassiodraconhawkinsi,(Plesiosaurusdolichodeir,((Seeleyosaurusguilelmiim,((Colymbosaurus_svalbardensis,(((Aristonectesparvidens,(Eromangasaurusaustralis,(Styxosaurussnowii,(Thalassomedonhaningtoni,(Callawayasauruscolombie,((Elasmosaurus_platyurus,Libonectesmorgani),(Hydrotherosaurusalexand,Terminonatatorpontiexen))))))),(Spitrasaurus_wensaasi,(Djupedalia_engeri,Spitrasaurus_larseni))),(Muraenosaurusleedsii,(Tricleidusseeleyi,(Cryptocliduseurymerus,Kimmerosauruslanghami))))),(Hydrorionbrachypterygiu,Occitanosaurustournemir))),(Microcleidushomalospond,OUMNH_J_dot_28585))))),(Attenborosaurusconybear,(BMNH_49202,(Augustasaurushagdorni,(Cymatosaurus,Simosaurusgaillardoti))))),(Maresauruscoccai,(Rhomaleosauruszetlandic,(Eurycleidusarcuatus,Rhomaleosaurusvictor))))),(Plesiosaurusmacrocephal,(((BEDFM_1999_slash_201,(Pliosaurusandrewsi,(OUMNH_J_dot_02247,Peloneustesphilarchus))),(Simolestesvorax,((Liopleurodonferox,(((Pliosaurus_brachyspondylus,(BMNH_R2439,Pliosaurus_brachydeirus)),(Pliosaurus_macromerus,(Pliosaurus_funkei,Pliosaurus_rossicus))),(Brachaucheniuslucasi,Kronosaurusqueenslandic))),(FHSMVP321,Pliosaurus_sp_BRSMG_Cc332)))),(((Brancasaurusbrancai,Kaiwhekeakatiki),(Umoonasaurusdemoscyllus,(Leptocleiduscapensis,Leptocleidussuperstes))),((QMF_18041,(Polycotyluslatipinnis,(Edgarosaurusmuddi,(Trinacromerumbentonianu,(Plesiopleurodonwellesi,((Dolichorhynchopshersche,Eopolycotylusrankini),(Dolichorhynchopsosborni,Manemergusanguirostris))))))),(Palmulasaurusquadratus,(Nichollsauraborealis,Thililualongicollis))))))),(Hauffiosauruslongirostris,(Hauffiosaurustomistomimus,Hauffiosauruszanoni)))));