Archaeonectrus_rostratusAristonectesparvidensAttenborosaurusconybearAugustasaurushagdorniMarmornectesBMNH_49202BMNH_R2439BrachaucheniuslucasiBrancasaurusbrancaiCallawayasauruscolombieCymatosaurusCryptocliduseurymerusDolichorhynchopsherscheEdgarosaurusmuddiElasmosaurus_platyurusEopolycotylusrankiniEromangasaurusaustralisEurycleidusarcuatusFHSM_VP321HauffiosauruslongirostrisHauffiosaurustomistomimusHauffiosauruszanoniHydrorionbrachypterygiuHydrotherosaurusalexandKaiwhekeakatikiKimmerosauruslanghamiKronosaurusqueenslandicLeptocleiduscapensisLeptocleidussuperstesLibonectesmorganiLiopleurodonferoxMacroplatatenuicepsManemergusanguirostrisMaresauruscoccaiMicrocleidushomalospondMuraenosaurusleedsiiNichollsauraborealisOccitanosaurustournemirOUMNH_J_dot_02247OUMNH_J_dot_10337OUMNH_J_dot_28585PalmulasaurusquadratusPeloneustesphilarchusPlesiopleurodonwellesiPlesiosaurusdolichodeirPlesiosaurusmacrocephalPliosaurusandrewsiPliosaurusbrachydeirusPliosaurusbrachyspondylPolycotyluslatipinnisQMF_18041RhomaleosaurusmegacephaRhomaleosaurusvictorRhomaleosauruszetlandicSeeleyosaurusguilelmiimSimolestesvoraxSimosaurusgaillardotiStyxosaurussnowiiTerminonatatorpontiexenThalassiodraconhawkinsiThalassomedonhaningtoniThililualongicollisTricleidusseeleyiUmoonasaurusdemoscyllusPistosaurusskullPistosauruspostcraYunguisaurusBobosaurusVectocleidus_pastorumHastanectes_valdensisPolycotylus_latipinnisDolichorhynchops_osborniTrinacromerum_bentonianumPahasapasaurus_haasiOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Schumacher_et_Martin_2016a