English: Hypotheses on the origin(s) of the extant amphibians, and their compatibility with molecular and morphological data. The names Amphibia and Lissamphibia do not apply in (E). (A) Consensus of all recent molecular studies (Pyron, 2014: supplementary file amph_shl.tre; Irisarri et al., 2017). (B) Part of the consensus of all recent morphological studies (e.g. our results, RC07 and references in both); modern amphibians not shown. (C) Extant amphibians added to (B) according to the “temnospondyl hypothesis”; note compatibility with (A). (D) “Lepospondyl hypothesis” mapped to (B); note compatibility with (A). (E) “Polyphyly hypothesis” mapped to (B); note lack of compatibility with (A). In earlier versions of the “polyphyly hypothesis”, Caudata often lies next to Gymnophionomorpha instead of Salientia; in that case, the name Batrachia does not apply (or becomes a synonym of the tetrapod crown-group).