Mammalia - Perissodactyla - Equidae
Alternative combinations: Merychippus (Merychippus) missouriensis, Stylonus missouriensis
Full reference: E. Douglass. 1908. Fossil horses from North Dakota and Montana. Annals of Carnegie Museum 4(15):267-277
Belongs to Merychippus according to H. F. Osborn 1918
See also Douglass 1908, Kelly and Lander 1988, Stirton 1940 and Tabrum and Nichols 2001
Sister taxa: Merychippus (Merychippus), Merychippus (Protohippus), Merychippus brevidontus, Merychippus calamarius, Merychippus californicus, Merychippus coloradense, Merychippus eohipparion, Merychippus eoplacidus, Merychippus gunteri, Merychippus insignis, Merychippus isonesus secundus, Merychippus labrosus, Merychippus patruus, Merychippus primus, Merychippus proparvulus, Merychippus quartus, Merychippus quintus, Merychippus relictus, Merychippus republicanus, Merychippus sejunctus, Merychippus seversus, Merychippus stevensi
Type specimen: CM 905, a partial skeleton (a portion of a skull, a mandible, a radius, two femora, two complete and two incomplete metapodials, also numerous fragments). Its type locality is Canyon Ferry Reservoir Earl Douglass Location, which is in a Hemingfordian terrestrial horizon in Montana.
Ecology: ground dwelling grazer-browser
Distribution: found only at Canyon Ferry Reservoir Earl Douglass Location
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.