Base of the evolutionary tree for Sphenacodontia

← parent

• Sphenacodontia (857 species)
  • unnamed group 52 → (856 species)
    • unnamed group 53 → (855 species)
      • Therapsida → (848 species)
        • unnamed group 73 → (835 species)
        • Biarmosuchia → (13 species)
      • Sphenacodontidae → (7 species)
        • unnamed group 55 → (6 species)
        • Secodontosaurus
    • Pantelosaurus saxonicus
  • Haptodus garnettensis

Other links

• Wikidata
• Open Tree of Life

---