†Merychippus isonesus quintus Osborn 1918 (horse)
Mammalia - Perissodactyla - Equidae
Full reference: H. F. Osborn. 1918. Equidae of the Oligocene, Miocene, and Pliocene of North America, iconographic type revision. Memoirs of the American Museum of Natural History 2(1):1-217
Belongs to Merychippus isonesus according to H. F. Osborn 1918
See also Dorr and Wheeler 1964, Kelly 1995 and Kelly and Lander 1988
Sister taxa: Merychippus isonesus quartus, Merychippus isonesus tertius
Type specimen: AMNH 14185, a partial skeleton (Upper and lower dentition and a large part of a skeleton)
Ecology: ground dwelling grazer-browser
Distribution: there are no occurrences of Merychippus isonesus quintus in the database