Dinohippus – Fossil Horses https://www.floridamuseum.ufl.edu/fossil-horses/gallery/dinohippus/
The Dinohippus genus is believed to be the most closely related to Equus, the genus that includes the living horses, asses and zebras. Florida Museum paleontologists have unearthed Dinohippus fossils at many sites, including the Palmetto Fauna mine and the Moss Acres Racetrack. Where & When?
Pliohippus had a couple of depressions, or fossae, in the bones in front of its eyes