Geologic Time

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Across
  1. 3. era and period of ice ages and modern plants and animals
  2. 4. era and first period in which Alps and Himalayas uplift
  3. 8. 3rd of Phanerozic Eras
  4. 9. era and period in which Rocky Mountains begin to uplift
  5. 10. 1st of Phanerozic Eras
  6. 12. era and period in which 1st birds appear
  7. 13. 1st precambrian eon
Down
  1. 1. mass extinction at the end of this era and period
  2. 2. era and period in which ocean begins to open (breakup of Pangea) and 1st mammals appear
  3. 5. era and period in which first fish and appalachians begin to form
  4. 6. eon between hadean and proterozoic eons
  5. 7. 3rd precambrian eon
  6. 11. Between paleozoic and cenozoic eras