Name: Merychippus. 
Meaning: New-look horse. 
Grouping: Mammal, 
Perissodactyl, Equid. 
Informal ID: 
Prehistoric horse.
Fossil size: Skull length 
26cm/10Xin. 
Reconstructed size: 
Head-body length 
1.5m/5ft.
Habitat: Open grassy 
plains, 
Time span: Miocene, 
17-15 million years ago. 
Main fossil sites: