YunguisaurusPistosaurus_postcraniumPistosaurus_skullAugustasaurusNHMUK_49202StratesaurusMacroplataAvalonnectesEurycleidusMeyerasaurusMaresaurusR_megacephalusArchaeonectrusR_cramptoniR_zetlandicusR_thorntoniThalassiodraconH_longirostrisH_tomistomimusH_zanoniAttenborosaurusPeloneustesEoplesiosaurusPlesiosaurusEretmosaurusWestphaliasaurusSeelyosaurusM_tournemirensisM_brachypterygiusM_homalospondylusPlesiospterysCryptoclidusB_forojuliensisOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Fabbri_etal_2014ab