<prompt> Ramba uchinyora ndima iyi - Mhando yokutanga yakapiwa zita yakawanikwa muMiocene Mascall Fauna yeCottonwood Creek, Oregon. Zita rokuti Anchitherium ultimus rudzi rwacho rwakatsanangurwa muna 1886 nenyanzvi inoona nezvezvinyorwa zvekare, E. D. Cope panguva yainyanya kurwiwa hondo dzeBone. Mukati mokudzidza muna 1906 pamusoro peMascall formation equids, J. Gidley akatamira kurudzi rutsva rwaakatumidza kuti Archaeohippus. Kufanana kwakasimba kwehunhu kwakakonzera kuti genus iongororwe se subgenus ye Parahippus naW. D. Matthew muna 1932. Mukupesana kwakasimba kwepfungwa Archaeohippus yakasimbiswazve naDF Bode muna 1933, uye pamwe chete ne A. ultimus, akabatanidza A. mourningi uye A. penultimus. Archaeohippus yakapararira muNorth America yose. Kuwedzera kune zviitiko muFlorida neOregon, zvisaririra zvakawanikwa muSouthern Saskatchewan, Canada. Kumugumo mumwe wokupararira kwawo Archaeohippus akawanwa kure kumaodzanyemba seMiocene Gaillard Cut yomunzvimbomo muyaichimbova canalzone  <response>: rePanama. Archaeohippus stenolophus, inozivikanwa kubva kuOligocene deposits muSaskatchewan, haisi ye Archaeohippus, uye A. minimus inosanganiswa nema taxon maviri, sezvakataurwa naOsborn 1918, neP3-M1 iri ye A. ultimus uye molar uye premolar iri yeakakura, akawana equid. Archaeohippus mannulus uye Arachaeohippus blackbergi zvakafukunurwa muFlorida, zvikurukuru paThomas Farm Site. 