The Geologic Time Scale

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Across
  1. 7. the supercontinent formed in the Paleozoic Era
  2. 8. what was formed in the Mesozoic Era causing sea levels to rise
  3. 9. the smallest unit of time on the Geologic Time Scale
  4. 10. the biggest unit of time on the Geologic Time Scale
  5. 12. the first half of the Cenozoic Era characterized by an ice age
  6. 14. what the Paleozoic, Mesozoic, and Cenozoic are
Down
  1. 1. the mass extinction before the Mesozoic Era
  2. 2. these mountains were formed in Asia after India collided Eurasia in the Cenozoic Era
  3. 3. this country split from North America and Europe as the final break of Pangaea in the Cenozoic Era
  4. 4. the first source of oxygen during Precambrian Time
  5. 5. examples of this include the Jurassic, Tertiary, Triassic, etc.
  6. 6. what shape Earth formed during Precambrian Time
  7. 11. an asteroid made them go extinct at the end of the Mesozoic Era
  8. 13. where all life was found at the start of the Paleozoic Era