Base of the evolutionary tree for African clade

• African clade (15 species)
  • unnamed group 166 → (12 species)
    • unnamed group 167 → (11 species)
      • unnamed group 170 → (8 species)
        • Rubidgeinae → (7 species)
        • Arctognathus
      • unnamed group 168 → (2 species)
        • Smilesaurus
        • Arctops
      • Lycaenops
    • Cynariops
  • Eriphostoma
  • Phorcys
  • Gorgonops