Temnodontosaurus_spMalawania_anachronusIchthyosaurus_communisStenopterygius_quadriscissusOphthalmosaurus_icenicusBrachypterygius_extremusMaiaspondylus_lindoeiUndorosaurus_gorodischensisArthropterygius_chrisorumMollesaurus_periallusAcamptonectes_densusCaypullisaurus_bonaparteiAegirosaurus_leptospondylusPlatypterygius_australisPlatypterygius_hercynicusAthabascasaurus_bitumineusLeninia_stellansSveltonectes_insolitusPalvennia_hoybertgeiCryopterygius_kristiansenaeJanusaurus_lundiFCG_dash_CBP_dash_74Ophthalmosaurus_natansPlatypterygius_sachicarumSimbirskiasaurus_birjukoviPervushovisaurus_bannovkensisOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Maxwell_etal_2016a