Milestones in the deep history of earth Flashcards
1
Q
Origin of the universe
A
13.7
2
Q
Origin of the milky way galaxy
A
12.5
3
Q
Origin of the sun
A
4.57
4
Q
Accretion of the earth
A
4.5
5
Q
Liquid water on earth
A
4.3
6
Q
Depleted 13C and banded iron formation
A
3.8
7
Q
Earliest evidence of cellular structures
A
3.5
8
Q
First evidence of O2 in the atmosphere
A
2.45
9
Q
Evidence of aerobic rock weathering
A
2.0
10
Q
First evidence of eukaryotes
A
2.0
11
Q
End of banded iron formation
A
1.8
12
Q
Land plants
A
0.43
13
Q
Genus Homo
A
0.002
