AncestorPalatodontaParaplacodusPlacodus_gigasPlacodus_inexpectatusCyamodus_rostratusCyamodus_hildegardisCyamodus_kuhnschnyderiHenodusMacroplacusPlacochelysProtenodontosaurusPsephodermaPsephochelysGlyphodermaSinocyamodusParahenodus_atancensisOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Miguel_Chaves_etal_inpressa