Dipterus_valenciennesiArganodus_atlantisAsiatoceratodus_sharoviBeltanodus_ambilobensisCeratodus_sturiiFerganoceratodus_martiniGnathorhiza_sppGosfordia_truncataLepidosiren_paradoxaNeoceratodus_forsteriParaceratodus_germainiProtopterus_annectensProtopterus_amphibiusProtopterus_aethiopicusProtopterus_dolloiPtychoceratodus_serratusSagenodus_sppOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Criswell_2015a