Editing Tetrapod (section)

==== Polyphyly hypothesis (PH) ====
This hypothesis has batrachians (frogs and salamanders) coming out of dissorophoid temnospondyls, with caecilians out of microsaur lepospondyls. There are two variants, one developed by [[Robert L. Carroll|Carroll]],<ref name="Carroll2007">{{cite journal |last1=Carroll |first1=Robert L. |title=The Palaeozoic Ancestry of Salamanders, Frogs and Caecilians |journal=Zoological Journal of the Linnean Society |volume=150 |issue=s1 |year=2007 |pages=1–140 |issn=0024-4082 |doi=10.1111/j.1096-3642.2007.00246.x |doi-access=free}}</ref> the other by Anderson.<ref name="Anderson2008">{{cite journal |last1=Anderson |first1=Jason S. |title=Focal Review: The Origin(s) of Modern Amphibians |journal=Evolutionary Biology |volume=35 |issue=4 |date=December 2008 |pages=231–247 |issn=0071-3260 |doi=10.1007/s11692-008-9044-5 |bibcode=2008EvBio..35..231A |s2cid=44050103}}</ref>

[[Cladogram]] modified after Schoch, Frobisch, (2009).<ref name="FrobischSchoch2009">{{cite journal |last1=Frobisch |first1=N. B. |last2=Schoch |first2=R.R. |title=Testing the Impact of Miniaturization on Phylogeny: Paleozoic Dissorophoid Amphibians |journal=Systematic Biology |volume=58 |issue=3 |year=2009 |pages=312–327 |issn=1063-5157 |doi=10.1093/sysbio/syp029 |pmid=20525586 |doi-access=free}}</ref>
{{clade| style=width:auto;font-size:100%;line-height:100%
|label1='''Tetrapoda'''
|1={{clade
  |1=stem tetrapods  |state1=double
  |2={{clade
  |1={{clade
    |label1=[[Temnospondyli]]
    |1={{clade
      |1=basal temnospondyls |state1=double
      |label2=[[Dissorophoidea]]
      |2={{clade
        |1={{clade
          |1={{extinct}} [[Amphibamidae]]
          |2='''[[Frog]]s''' [[File:The tailless batrachians of Europe (Page 194) (Pelobates fuscus).jpg|45 px]]
}}
      |2={{clade
          |1={{extinct}} [[Branchiosauridae]] [[File:Branchiosaurus_BW.jpg|70 px]]
          |2='''[[Salamander]]s''' [[File:Salamandra salamandra (white background).jpg|70 px]]
}} }} }}
      |2={{clade
      |label1=[[Lepospondyli]]
      |1={{clade
            |1={{extinct}} [[Lysorophia]] [[File:Lysorophus.jpg|70 px]]
      |2={{clade
          |1={{extinct}} [[Microsauria]] [[File:Hyloplesion.jpg|70 px]]
          |2='''[[Caecilians]]''' [[File:Syphonops annulatus cropped.jpg|70 px]]
}} }} }} }}
      |2={{clade
        |1={{clade
          |1={{extinct}} [[Seymouriamorpha]] [[File:Karpinskiosaurus1DB.jpg|70 px]]
          |2={{clade
              |1={{extinct}} [[Diadectomorpha]] [[File:Diadectes1DB (flipped).jpg|70 px]]
              |2='''[[Amniota]]''' [[File:British reptiles, amphibians, and fresh-water fishes (1920) (Lacerta agilis).jpg|70 px]]
}} }} }} }} }} }}