ConchopomaAphelodusArchaeoceratodusArganodusArigunaAsiatoceratodusBeltanodusCeratodusFerganoceratodusGnathorhizaGosfordiaLepidosirenMegapleuronMetaceratodusMicroceratodusMioceratodusNamatozodiaNeoceratodusParaceratodusProtopterusPtychoceratodusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Schultze_2004a