After Frost et al, 2006

    Diadectosalamandroidei Frost et al., 2006
        Salamandriformes Milner, 2000
        Salamandroidea Larson & Dimmick, 1993

        †Scapherpetontidae Auffenberg & Goin, 1959
            †Eoscapherpetontinae Nesov, 1981
            †Scapherpetontinae (Auffenberg & Goin, 1959)

        †Batrachosauroididae Auffenberg, 1958

        Hydatinosalamandroidei Frost et al., 2006

            Perennibranchia Latreille, 1825
                Perennibranchia Latreille; Frost et al., 2006

                Proteiidae Gray, 1825
                    Proteina Gray, 1825
                    Phanerobranchoidea Fitzinger, 1826
                    Necturi Fitzinger, 1843
                    Hypochthonina Bonaparte, 1840
                    Necturina Bonaparte, 1845
                    ?Hylaeobatrachidae Abel, 1919
                    Menobatrachida Knauer, 1883
                    Proteoidea Larson, 1996

                Sirenidae Gray, 1825
                    Sirenina Gray, 1825
                    Sirenes Fitzinger, 1843
                    Sirenoidea
                    Meantes
                    Trachystomata

            Treptobranchia Frost et al., 2006

                Ambystomatidae Gray, 1850
                    Ambystomina Gray, 1825
                    Siredontina Bonaparte, 1850
                    Dicamptodontinae Tihen, 1958

                Salamandridae Goldfuss, 1820
                    Salamandrae Goldfuss, 1820
                    Tritonidae Boie, 1828
                    Pleurodeles Tschudi, 1838
                    Salamandrinae Fitzinger, 1843
                    Molgidae Gray, 1850a
                    Seiranotina Gray, 1850a
                    Bradybatina Bonaparte, 1850
                    Geotritonidae Bonaparte, 1832
                    Salamandridae Goldfuss; Frost et al., 2006

        Plethosalamandroidei Frost et al., 2006

            Rhyacotritonidae Tihen, 1958
                Rhyacotritoninae Tihen, 1958
                Rhyacotritonidae Good & Wake, 1992
                Rhyacotritonidae Tihen; Fro et al., 2006
            
            Xenosalamandroidei Frost et al., 2006
                Amphiumidae Gray, 1825 emend. Gray, 1850
                     Amphiumoidea Gray, 1825

                Plethodontidae Gray, 1850a
                    Plethodontidae Gray, 1850a
                    Oepidina Gray, 1850a
                    Ensatinina Gray, 1850a
                    Bolitoglossidae Hallowell, 1856
                    Hemidactylidae Hallowell, 1856
                    Spelerpinae Cope, 1859
                    Thoriidae Cope, 1869
                    Typhlomolgidae Stejneger & Barbour, 1917
                    Plethodontoidea Larson, 1996
                    Plethodontidae Gray; Frost et al., 2006

                    Desmognathinae Gray, 1850a
                        Desmognathina Gray, 1850a
                    Plethodontinae Gray, 1850a
                        Plethodontidae Gray, 1850a

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