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Taxon: Family †Sphenacodontidae Marsh, 1878 (reptile)
Cladification by:

life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Eukaryota Chatton, 1925 - eukaryotes see Domain Eukaryota Chatton, 1925
     Metazoa Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758
       Bilateria Hatschek, 1888 - bilaterians see Subkingdom Bilateria Hatschek, 1888
         Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
           Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
             Chordata Bateson, 1885 - chordates
               Vertebrata Cuvier, 1812 - vertebrates
                 Gnathostomata Gegenbaur, 1874 - jawed vertebrates see Superclass Gnathostomata Gegenbaur, 1874
                   Osteichthyes Huxley, 1880 - bony fishes see [unranked] Euteleostomi
                     Sarcopterygii Romer, 1955 see Clade Sarcopterygii Romer, 1955
                       Tetrapodomorpha Ahlberg, 1991 see [unranked] Tetrapodomorpha Ahlberg, 1991
                         Tetrapoda Goodrich, 1930 - tetrapods see Clade Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
                           Neotetrapoda
                             Reptiliomorpha Säve-Söderbergh, 1934 see [unranked] Reptiliomorpha Säve-Söderbergh, 1934
                               Unnamed
                                 Amniota Haeckel, 1866 see Clade Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988]
                                   Synapsida Osborn, 1903 see Clade Synapsida Osborn 1903 [Gauthier et al. 1989]
                                     Unnamed
                                       Unnamed
                                         Sphenacodontidae Marsh, 1878

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Last updated: 1 Feb 2024