Horse
The horse adapted to survive in areas of wide-open terrain with sparse vegetation, surviving in an ecosystem where other large grazing animals, especially ruminants, could not. Horses and other equids are odd-toed ungulates of the order Perissodactyla, a group of mammals that was dominant during the Tertiary period. In the past, this order contained 14 families, but only three—Equidae (the horse and related species), Tapiridae (the tapir), and Rhinocerotidae (the rhinoceroses)—have survived to the present day.
Enhydriodon dikikae
"Enhydriodon dikikae" belongs to the Carnivora order, Musteloidea superfamily, Mustelidae family and Lutrinae subfamily. The closest living relative to this species is the modern otter. Other related animals in the Musteloidea superfamily are from the family, Procyonidae to which animals like racoons, olingos and coatis belong to. There is some debate over whether "E. dikikae" should belong to the "Sivaonyx" genus however at this point, it is still classified as being in the "Enhydriodon" genus.