Phanerozoic Eon Puzzle

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Across
  1. 2. 1st Era "Ancient Life".
  2. 4. Current Per. of Cenozoic "Age of Humans".
  3. 5. 4th Per. of Paleozoic "Age of Fish".
  4. 6. 1st Per. of Cenozoic "Age of Birds".
  5. 9. Final Per. of Paleozoic "The Great Dying".
  6. 12. Current Era "Recent Life".
  7. 14. 5th Per. of Paleozoic "Age of Amphibians".
  8. 15. 3rd Per. of Paleozoic "The Terrestrial Revolution".
Down
  1. 1. 1st Per. of Mesozoic "Age of Reptiles".
  2. 3. Final Per. of Mesozoic "Golden Age of Dinosaurs".
  3. 7. 2nd Per. of Paleozoic "Rise of the Arthropods".
  4. 8. 2nd Per. of Cenozoic "Age of Mammals".
  5. 10. 2nd Era "Middle Life".
  6. 11. 1st Per. of Paleozoic "___ Explosion".
  7. 13. 2nd Per. of Mesozoic "Rise of the Dinosaurs".