 Ramba uchiverenga ndima ino - Nhasi marudzi akawanda eperissodactyl anongova muzvikamu zviduku zvomunzvimbo dzaaigara pakutanga. Nhengo dzeboka iri zvino dzinongowanikwa muCentral neSouth America, kumabvazuva nokumaodzanyemba kweAfrica, uye pakati, kumaodzanyemba, uye kumaodzanyemba kwakadziva kumabvazuva kweAsia. Munguva yakanyanya kunaka yokuvapo kwezvipembenene zvine zvigunwe zvisingawanzoitiki, kubva kuEocene kusvika kuOligocene, perissodactyls yakapararira munzvimbo dzakawanda dzenyika, kunze kweAustralia neAntarctica chete. Mabhiza netapir zvakasvika kuSouth Americapashure pokuumbwa kweIsthmus yePanama muPliocene, makore anenge mamiriyoni 3 akapfuura. MuNorth America, dzakapera makore 10 000 akapfuura, nepo muEurope, mapani akapera muzana remakore rechi19. Kuvhima uye kuderedzwa kwenzvimbo dzokugara kwakaita kuti marudzi aripo nhasi ave mashoma. Kusiyana neizvi, mabhiza nemadhongi zvakapararira munyika yose, uye mhuka dzomusango dzemarudzi ose ari maviri zvino dzinowanikwawo mumatunhu ari kunze kwenzvimbo dzaaigara pakutanga, akadai seAustralia. 