4.3
//
Hyracotherium 56 mya
1.8
1.5
2.8
0.7
0.6
2.6
0.7
0.4
Figure 2:  Phylogenetic tree of recent horses.
Divergence splits are shown in millions of years ago.
Click on names to follow links
Mountain zebra
Plains zebra
Grevy’s zebra
Kiang
Onager
Kulan
African wild ass
Donkey
Przwalski’s horse
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