Plesiosaurus_dolichodeirusMuraenosaurus_leedsiCryptoclidus_eurymerusTricleidus_seeleyiKimmerosaurus_langhamiEdgarosaurus_muddiPolycotylus_latipinnisDolichorhynchops_osborniTrinacromerum_bentonianumBrancasaurus_brancaiTatenectes_laramiensisThalassiodracon_hawkinsiAristonectes_parvidensAristonectes_quiriquinensisCallawayasaurus_columbiensisFutabasaurus_suzukiiKaiwhekea_katikiMauisaurus_haastiMicrocleidus_tournemirensisSGO_PV_260Styxosaurus_snowiiThalassomedon_haningtoniTuarangisaurus_keyesiOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Otero_etal_2014a