Equus occidentalis (commonly known as the Western Horse) is an extinct species of wild horse that once inhabited North America, specifically the Southwestern United States, during the Pleistocene epoch.
Dwarf elephants are prehistoric members of the order Proboscidea which, through the process of allopatric speciation on islands, evolved much smaller body sizes (around 3 ft. 3 in. to 7 ft. 7 in.) in comparison with their immediate ancestors.