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This being a class is bullshit because it is not a clade, notably birds are not considered reptiles, but they are clearly in the clade.

Ancestors

  1. Sauropsida
  2. Amniote subclade
  3. Amniote
  4. Tetrapod subclade
  5. Tetrapod
  6. Fish subclade
  7. Fish
  8. Vertebrate
  9. Chordate subclade
  10. Chordate
  11. Animal subclade
  12. Animal
  13. Eukarya subclade
  14. Eukaryote
  15. Species
  16. Taxonomy
  17. Biology
  18. Natural science
  19. Science
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