SynapsidaCaseasauria
        Eupelycosauria
            Sphenacodontia
                Sphenacodontoidea
                    Therapsida (nisäkäsmäiset synapsidit)
                        †Biarmosuchia Sigogneau-Russell, 1989 [paraphyletic assemblage of basal therapsids?]
                        EutherapsidaDinocephaliaAnteosauriaTapinocephalia
                            NeotherapsidaGorgonopsia (sapelihampaiset; sabretooth-therapsids)
                                †Anomodontia (anomodontit, kaksikeilahampaiset; anomodonts, dicynodonts)
                                    †Venyukovioidea [Venyukoviamorpha]
                                    †DromasauriaDicynodontiaEodicynodontoideaEndothiodontoideaPristerodontia [Pristerodontoidea]
                                        †DiictodontiaKingorioidea
                                Theroidontia [“all therapsids closer to mammals than dicynodonts”]
                                    †Therocephalia
                                    Cynodontia (kynodontit; cynodonts)
                                        †EucynodontiaCynognathiaProbainognathiaMammaliamorphaTritylodontoideaChiniquodontoidea
                                                    Mammaliaformes [Mammalia sensu lato]Docodonta (docodonts, dokodontit)
                                                        Mammalia (mammals; nisäkääkkät)

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