(Archaeonectrus_rostratus,(Rhomaleosaurusmegacepha,((Macroplatatenuiceps,(BMNH_49202,(((Plesiosaurusdolichodeir,(Seeleyosaurusguilelmiim,(((Thalassomedonhaningtoni,((Terminonatatorpontiexen,((Callawayasauruscolombie,(Eromangasaurusaustralis,(Aristonectesparvidens,Kaiwhekeakatiki))),(Hydrotherosaurusalexand,Styxosaurussnowii))),(Elasmosaurus_platyurus,Libonectesmorgani))),(((Nichollsauraborealis,(Brancasaurusbrancai,(Umoonasaurusdemoscyllus,(Vectocleidus_pastorum,(Leptocleiduscapensis,Leptocleidussuperstes))))),(Edgarosaurusmuddi,(QMF_18041,(Palmulasaurusquadratus,(Plesiopleurodonwellesi,(Eopolycotylusrankini,(Thililualongicollis,(Dolichorhynchopshersche,(Manemergusanguirostris,(Polycotyluslatipinnis,(Pahasapasaurus_haasi,(Polycotylus_latipinnis,(Dolichorhynchops_osborni,Trinacromerum_bentonianum))))))))))))),(Tricleidusseeleyi,(Muraenosaurusleedsii,(Cryptocliduseurymerus,Kimmerosauruslanghami))))),(Microcleidushomalospond,(Hydrorionbrachypterygiu,Occitanosaurustournemir))))),(((Augustasaurushagdorni,(Pistosaurusskull,Yunguisaurus)),(Pistosauruspostcra,(Cymatosaurus,Simosaurusgaillardoti))),(Plesiosaurusmacrocephal,Bobosaurus))),(OUMNH_J_dot_10337,(OUMNH_J_dot_28585,(Thalassiodraconhawkinsi,((Attenborosaurusconybear,((Marmornectes,BMNH_R2439),(Hastanectes_valdensis,(Pliosaurusandrewsi,((Simolestesvorax,(Liopleurodonferox,((FHSM_VP321,(Brachaucheniuslucasi,Kronosaurusqueenslandic)),(Pliosaurusbrachydeirus,Pliosaurusbrachyspondyl)))),(OUMNH_J_dot_02247,Peloneustesphilarchus)))))),(Hauffiosauruslongirostris,(Hauffiosaurustomistomimus,Hauffiosauruszanoni))))))))),(Eurycleidusarcuatus,(Rhomaleosauruszetlandic,(Maresauruscoccai,Rhomaleosaurusvictor))))));