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11 Terms
1
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Hadean Eon
4.6 bya - 4 bya
2
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Archean Eon
4 bya- 2.5 bya
3
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Proterozoic eon
2.5 bya-541 mya
4
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Phanerozoic Eon
541 mya- Present
5
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Origin of Earth
4.6 bya
6
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Atmospheric Oxygen Revolution
2.1~2.2 bya
7
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Prokaryotes
3.5 bya
8
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Single-celled eukaryotes
1.7~1.8 bya
9
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Multi-celled eukaryotes
1.2~1.3 bya
10
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Rudimentary animals
750 mya
11
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Colonization of land
~450 mya
Note 
Flashcards (179)