Eras of the earth

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Across
  1. 5. era who's name means old life
  2. 7. last period of mesozoic era
  3. 8. a time when glaciers cover the earth
  4. 9. dinosaur with 3 horns on its head
  5. 11. period that had an explosion of life
  6. 14. tyrant king dinosaur
  7. 15. large reptiles during mesozoic era
Down
  1. 1. movie -------- park
  2. 2. first period of the mesozoic era
  3. 3. flying reptile dinosaurs
  4. 4. scientific name for humans
  5. 6. feathered reptile, link between reptiles and birds
  6. 9. the arthropod to first develop eyes
  7. 10. the present era, name means new life
  8. 12. the cenozoic era is sometimes called the age of ________
  9. 13. large elephant like mammal with a hairy coat