(Archaeonectrus_rostratus,(Rhomaleosaurusmegacepha,((Macroplatatenuiceps,(BMNH_49202,(((Plesiosaurusdolichodeir,(Seeleyosaurusguilelmiim,(((Thalassomedonhaningtoni,((Terminonatatorpontiexen,((Callawayasauruscolombie,(Eromangasaurusaustralis,(Aristonectesparvidens,Kaiwhekeakatiki))),(Hydrotherosaurusalexand,Styxosaurussnowii))),(Elasmosaurus_platyurus,Libonectesmorgani))),((Polycotyluslatipinnis,(((Palmulasaurusquadratus,(Nichollsauraborealis,(Brancasaurusbrancai,Gronausaurus_wegneri))),(Leptocleiduscapensis,Leptocleidussuperstes,Umoonasaurusdemoscyllus,Vectocleidus_pastorum)),(Edgarosaurusmuddi,(((Trinacromerumbentonianu,(Manemergusanguirostris,(Dolichorhynchopshersche,Dolichorhynchopsosborni))),(Eopolycotylusrankini,Thililualongicollis)),(Plesiopleurodonwellesi,QMF_18041))))),(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))))));