Geological Time Scale

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Author:
hphwarts
ID:
33558
Filename:
Geological Time Scale
Updated:
2010-09-08 22:59:10
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Geological Time Scale
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Geological Time Scale
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  1. What is the first eon?
    Archean
  2. What is the second eon?
    Proterozoic
  3. What is the third eon?
    Phanerozoic
  4. What are the three eras?
    Paleozoic, Mesozoic, Cenozoic
  5. What are the seven periods in the Paleozoic?
    Cambrian, Ordovician, Devonian, Mississippian, Pennsylvanian, Permian
  6. What are the three periods of the Mesozoic?
    Triassic, Jurassic, Cretaceous
  7. What are the two periods of the Cenozoic?
    Tertiary, Quaternary
  8. When did the Paleozoic era begin and end?
    570-240 million years ago
  9. When did the Mesozoic begin and end?
    240-66 million years ago
  10. When did the Cenozoic begin?
    66 million years ago

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