outgroupBrachyrhinodon_tayloriClevosaurus_hudsoniKallimodonSapheosaurus_thiolleriSphenodon_punctatusCynosphenodon_huizachalensisZapatadonEilenodonPriosphenodonToxolophosaurusOpisthiasPamizinsaurusPalaeopleurosaurus_posidoniaeHomeosaurus_maximillianiDiphydontosaurusSphenocondorGodavarisaurusTheretairusSphenoviperaKaikaifilusaurusKawasphenodonAnkylosphenodonRebbanasaurusPlanocephalosaurus_robinsonaePleurosaurus_goldfussiPleurosaurus_ginsburgiPolysphenodon_muelleriGephyrosaurus_bridensisYounginaSQUAMATAKuehneosaurusPaliguanaSophinetaMarmorettaProlacertaCoelurosauravusSaurosternonTangasaurusAcerosodontosaurusPalaeagamaClevosaurus_wangiOenosaurusClevosaurus_petiliusClevosaurus_bairdiClevosaurus_mcgilliMRPMaximum ParsimonyBased on reanalysis of the original matrix.Brocklehurst_etal_2015ad