Base of the evolutionary tree for African clade

• African clade (15 species)
  • unnamed group 172 → (12 species)
    • unnamed group 173 → (11 species)
      • unnamed group 176 → (8 species)
        • Rubidgeinae → (7 species)
        • Arctognathus
      • unnamed group 175 → (2 species)
        • Smilesaurus
        • Arctops
      • Lycaenops
    • Cynariops
  • Gorgonops
  • Eriphostoma
  • Phorcys