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16 Cards in this Set
- Front
- Back
Cataclysmic formation of the moon |
4.5ga |
|
Formation of earth |
4.56ga |
|
Formation of the solar system |
4.567ga |
|
First stars and galaxies |
12.8-13.75ga |
|
Deionization of the universe |
13.75ga |
|
Big bang |
13.8ga |
|
Great oxidation |
2.3ga |
|
First record of eukaryotic cells |
2.1-2.2ga |
|
First multicellular organisms |
1.2 |
|
Cambrian era |
541-585 |
|
Hadean |
4.0-2.5 |
|
Archean |
2.5ga-541ma |
|
Proterozoic |
541-252ma |
|
Phanerozoic |
252-66ma |
|
Heavy bombardment |
4000ma |
|
Ediacarin |
542ma |