outgroupGephyrosaurusDiphydontosaurusPlanocephalosaurusPolyspenodonBrachyrhinodonClevosaurus_hudsoniC_bairdiC_petilusC_mcgilliHomoeosaurusKallimodonPalaeopleurosaurusSphenodonOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Sues_etal_1994a