Base of the evolutionary tree for Synapsida

← parent

• Synapsida (890 species)
  • unnamed group 34 → (874 species)
    • unnamed group 45 → (863 species)
      • unnamed group 46 → (862 species)
        • Sphenacodontia → (857 species)
        • Edaphosauridae → (5 species)
      • Ianthodon schultzei
    • Caseasauria → (11 species)
      • Caseidae → (9 species)
        • unnamed group 38 → (8 species)
        • Oromycter dolesorum
      • Eothyrididae → (2 species)
        • Eothyris parkeyi
        • Oedaleops campi
  • unnamed group 19 → (16 species)
    • Varanopidae → (12 species)
      • unnamed group 24 → (11 species)
        • unnamed group 25 → (10 species)
        • Pyozia mesenensis
      • Archaeovenator hamiltonensis
    • Ophiacodontidae → (4 species)
      • unnamed group 21 → (3 species)
        • unnamed group 22 → (2 species)
        • Varanosaurus acutirostris
      • Archaeothyris florensis

Other links

• Wikidata
• Open Tree of Life

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