After Yates & Warren, 2000, and Schoch, 2008

<==o †Metoposauroidea
   |--o †Latiscopidae [Almasauridae]
   |  |-- †Latiscopus disjunctus Wilson, 1948 [nomen dubium (Bolt & Chatterjee, 2000)]
   |  `-- †Almasaurus habbazi
   `--+-- †Callistomordax kugleri Schoch, 2008; M.Trias CEu.
      `--o †Metoposauridae Watson, 1919
         |?- ?†Apachesaurus gregorii Hunt, 1993 [incl. Kalamoiketor pinkleyi Branson & Mehl, 1929]
         |?- †“Metoposaurus” santaecrucis Koken, 1913 [nomen dubium]
         |?- †Dictyocephalus elegans Leidy, 1856 [Temnospondylia indet.]
         |--+-- †“dwarf metoposaur”
         |  `--o †Metoposaurus diagnosticus (Meyer, 1842) Lydekker, 1890 [Metopias diagnosticus Meyer, 1842; M. stuttgartiensis Fraas, 1913; M. heimi Kuhn, 1932; Buettneria perfecta Case, 1922 in partim]
         |     |-- †M. d. diagnosticus (Meyer, 1842)
         |     `-- †M. d. krasiejowensis Sulej, 2002
         `--+--o †“Metoposaurus 2”
            |  |-- †“M.” azerouali Dutuit, 1976
            |  |-- †Arganasaurus lyazidi (Dutuit, 1976)
            |  `-- †Dunuitosaurus ouazzoui (Dutuit, 1976)
            `--+--o †“Buettneria” Case, 1922 [non Buettneria, a katydid orthopteran [Insecta: Orthoptera: Tettigoniidae]] [taxonomic history]
               |  |-- †“B.” perfecta Case, 1922 [taxonomic history]
               |  |-- †“B.” bakeri Case, 1931 [taxonomic history]
               |  `?- †“B.” howardensis Sawin, 1945 [taxonomic history]
               `--+-- †Koskinodon princeps Branson & Mehl, 1929 [Borborophaqus wyomingensis Branson & Mehl, 1929] [= Koskinonodon perfectum (Case), see “Taxonomic history of the genus Buettneria”]
                  |-- †“Metoposaurus 3” maleriensis Roychowdhury, 1965 [Chowdhury; Roy-Chowdhury] [†Buettneria maleriensis (Roychowdhury, 1965) Sengupta, 2002] [= Koskinonodon perfectum (Case), see “Taxonomic history of the genus Buettneria”]
                  `-- †Anaschisma browni Branson, 1905

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