Fossils

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Across
  1. 4. a time period
  2. 5. the era of the dinosaurs
  3. 7. chirping away at something
  4. 10. a rock from a long time ago
  5. 11. the proses a bone undertakes before
  6. 13. a type of animal from the same family
  7. 15. an animal evolves to _______ to its environment
  8. 16. rock building on top of a bone creates a lot of _______
Down
  1. 1. disappearance of about 50% of anime species
  2. 2. an extinction of all of one species
  3. 3. people that work with fossils
  4. 6. rock in a layered form
  5. 8. doges love _____
  6. 9. things in rock that go into bones to fossilize them
  7. 12. bones from a long time ago
  8. 14. the star we see in the day