Mammalia - Perissodactyla - Equidae
PaleoDB taxon number: 43009
Alternative spelling: Protohippus (Merychippus)
Full reference: J. Leidy. 1856. Notices of Extinct Vertebrata Discovered by Dr. F. V. Hayden, during the Expedition to the Sioux Country under the Command of Lieut. G. K. Warren. Proceedings of the Academy of Natural Sciences of Philadelphia 8:311-312
Parent taxon: Equinae according to B. J. MacFadden 1998
Sister taxa: Acritohippus, Calippini, Equini, Hipparionini, Hippodon, Hippotheriini, Protohippini, Scaphohippus, Stylonus
Subtaxa: 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 missouriensis, Merychippus patruus, Merychippus primus, Merychippus proparvulus, Merychippus quartus, Merychippus quintus, Merychippus relictus, Merychippus republicanus, Merychippus sejunctus, Merychippus seversus, Merychippus stevensi
Type: Merychippus insignis
Ecology: scansorial insectivore