Geologic Time Scale

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Across
  1. 4. Era The era that was before the Mesozoic Era.
  2. 6. This specie of animal went extinct and marked the end of the Mesozoic era.
  3. 8. Dating The exact age of a fossil.
  4. 9. Time Scale The timeline of Earth's history that is usually divided by major events.
  5. 10. of Superposition The layers that pile up on each other and give us the relative age of fossils.
Down
  1. 1. fossils Preserved signs of activity or behavior of an organism.
  2. 2. Time The oldest era on the geologic time scale
  3. 3. 3D Impression of a buried organism once their body decays.
  4. 5. Era The era that is most recent and we are currently living in.
  5. 7. The process where species grow and develop into another kind of similar species.