Geological Time Scale

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Across
  1. 3. Era in which life increased in complexity and Pangea forms
  2. 5. The remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.
  3. 9. The start of a period of major global cooling
  4. 10. The división of the time between the Precarambian and the present into three Big units of Time
  5. 11. A geological Time period that lasted from 251.9 to 2001.3 million year ago
  6. 12. A geologic Time period that took place between 201 and 145 million years ago
Down
  1. 1. Time that causes about 88 percent of Earth's hisborg
  2. 2. An expert in a study of geology
  3. 4. Era in wich Mammal evolve to become the dominant land animals
  4. 6. The subdivision of eras into units of geologic the time
  5. 7. Was a geological period that lasted from 145 million to 66 million years ago
  6. 8. Era in which the dominace of dinasours and Pangea breaking apart