After Winkler, Murry & Jacobs, 1990, Larson, 1996 [“The Tree of Life”] and Shishkin, 2000

<==o Salamandroidea sensu Larson & Dimmick, 1993 [Salamandriformes Milner, 2000; Salamandroidea sensu Gao & Shubin, 2012] (salamanterit)
   |?- †Apricosiren Evans & McGowan, 2002; L.Cret. WEu.
   |?- †Calverpeton Estes & Sanchíz, 1982; L.Cret. WEu.
   |?- †Comonecturoides marshi Hecht & Estes, 1960
   |?- †Hylaeobatrachus Dollo, 1884; L.Cret. WEu.
   |?- †Iridotriton hechti Evans, Lally, Chure, Elder & Maisano, 2005; U.Jur. WNA. [reassignated as basal Hynobiids by Gao & Shubin, 2012]
   `--+-- †Valdotriton Evans & Milner, 1996; L.Cret. WEu.
      `--+--+-- Plethodontidae [Plethodontoidea (lungless salamanders; keuhkottomat salamanterit)
         |  `-- Amphiumidae Gray, 1825 emend. Gray, 1850 [Amphiumoidea Gray, 1825](amphiumas, congo eels; ankeriasliskot) 
         `--+--o Rhyacotriton [Rhyacotritonidae Good & Wake, 1992] (torrent salamanders; koskisalamanterit, länsirannikon-)
            |  |--+-- R. olympicus (olympiankoskisalamanteri)
            |  |  `-- R. kezeri
            |  `--+-- R. cascadae (kaskadivuortenkoskisalamanteri)
            |     `-- R. variegatus
            |-- Proteidae [Proteoidea Cope, 1866; Proteida Cope, 1866] (mudpuppies & waterdogs; olmiensukuiset salamanterit) [possibly a polyphyletic group]
            `--o Salamandroidea Noble, 1931 (salamanterit)
               |-- Salamandridae Goldfuss, 1820 (newts; aitosalamanterit) [15?/69]
               `--o Ambystomatoidea Noble, 1931 (aksolotliensukuiset salamanterit)
                  |-- Dicamptodontidae (tyynenmerensalamanterit)
                  `-- Ambystomatidae (aksolotlit)

After Trueb, 1993

<==o Salamandroidea
   |--+-- Proteidae [Proteoidea Cope, 1866; Proteida Cope, 1866] (mudpuppies & waterdogs; olmiensukuiset salamanterit) [possibly a polyphyletic group]
   |  `-- Amphiumidae Gray, 1825 emend. Gray, 1850 [Amphiumoidea Gray, 1825](amphiumas, congo eels; ankeriasliskot) 
   `--+--+-- Sirenidae (sirens; mutaliskot) [2/4] [Sirenoidea; Meantes; Trachystomata]
      |  `-- Plethodontidae [Plethodontoidea (lungless salamanders; keuhkottomat salamanterit)
      `--+-- Salamandridae (aitosalamanterit) [15?/69]
         |?- Dicamptodontidae (tyynenmerensalamanterit)
         |?- Rhyacotritonidae Good & Wake, 1992
         `-- Ambystomatidae (aksolotlit)

Salamandroidea incertae sedis:

Scapherpetontidae Auffenberg & Goin, 1959 [are ambystomatoids (Shishkin, 2000)??]
        †Eoscapherpetontinae Nesov, 1981
            †Horezmia gracile Nesov, 1981
            †Eoscapherpeton Nesov, 1981
                †E. asiaticum Nesov, 1981
                †E. superum Nesov, 1997
        †Scapherpetontinae (Auffenberg & Goin, 1959)
            ?†Lisserpeton
            ?†PiceoerpetonScapherpeton tectum [Hedronchus, Hemitrypus]

    o †Batrachosauroididae Auffenberg, 1958 [are proteoids (Shishkin, 2000)??]
    |?- †Mynbulakia surgayi Nesov, 1981
    |?- †Peratosauroides problematica U. Mioc. SWNA.
    |-- †Parrisia neocesariensis Denton & O'Neill, 1998; CNA.
    `--+-- †Prodesmodon copei Estes, 1964 [Cuttysarkus]
       `--+--o †Opisthotriton
          |  |-- †O. kayi
          |  `-- †O. gidleyi
          `--+-- †Batrachosauroides
             `-- †Palaeoproteus

Reference(s):