2.1 - 2.04
2.04 - 1.98
1.98 - 1.92
1.92 - 1.86
1.86 - 1.8
300K
2.1 - 1.8 M
60K
81st
80th
79th
78th
77th
76th
75th
74th
73rd
72nd
71st
70th
Paleoproterozoic 2.5 - 1.6
Homo Erectus
North Pole 2 -
South Pole 1.9 - 1.2
- 2 M Homo gautengensis
- 2 M - 400 K Homo Erectus
- 1.9 Million Homo Rudolfensis. One skull found in Kenya