Geologic Time

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Across
  1. 3. a time beginning with some special date or event
  2. 5. A divison of time
  3. 8. An era that means recent life
  4. 10. A bone that is very old, A Paleontologist study these
Down
  1. 1. An era that means the age of reptiles
  2. 2. The name for an incredible amount of death within an era (Both 1st letters of the word are capitalized.)
  3. 4. A large super continent
  4. 6. Someone who studies land and time, scientifically.
  5. 7. One billion years.
  6. 9. An era that means ancient life