1. The Origin of Life
  2. Earth's Earliest Life
  3. Sex and Nuclei: Eukaryotes
  4. The Evolution of Animals
  5. Life in a Changing World
  6. Extinction
  7. The Early Vertebrates
  8. Leaving the Water
  9. Amphibians and Reptiles
  10. Reptiles and Thermoregulation
  11. Triassic Takeover
  12. Dinosaurs
  13. Warm-Blooded Dinosaurs?
  14. The Evolution of Flight
  15. The Origin of Mammals
  16. Marine Reptiles
  17. Why Flowers are Beautiful
  18. The End of the Dinosaurs
  19. Cenozoic Mammals
  20. Geography and Evolution
  21. Primates
  22. Evolving Toward Humans
  23. The Ice Age
  24. Humans and the Ice Age
Many outside links! Bookmark homepage.

The Early Vertebrates


Vertebrate Origins

Early Vertebrates



The Evolution of Jaws

Bony Fishes

  • BBC's Introduction to Bony Fishes
  • Another Introduction to Bony Fishes
  • Images of Placoderms and other Devonian Fossils

  • The Largest Predator of the Devonian Seas, the Placoderm Dunkleosteus or click here
  • Tulane Museum's Image of a "Living Fossil" Rayfin Fish the Gar

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