Heptodon_posticusHyrachyus_eximiusHyrachyus_princepsRostriamynodon_grangeriAmynodon_advenusF_totadentataPappaceras_confluensPappaceras_minutaPap_meiomenusTriplopus_cubitalisH_nebraskensisPro_meridionaleEpitriplopus_uintensisTriplopides_rieliArdynia_praecoxEggysodon_osborniAllacerops_turgaicaProeggysodon_qiuiJ_sharamurenensisU_intermediumPar_grangeriUintaceras_radinskyiTeletaceras_borissiakiTrigonias_osborniS_occidentalisOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Wang_etal_2016f