 Ramba uchinyora ndima iyi - Tateguru wemakamera emazuva ano, Paracamelus, akatamira kuEurasia achibva kuNorth America achipfuura neBeringia munguva yeMiocene yapera, pakati pemamiriyoni 7.5 ne6.5 apfuura. Munguva yePleistocene, makore anenge mamiriyoni matatu kusvika kumamiriyoni 1 akapfuura, Camelidae yokuNorth America yakapararira kuSouth America sechikamu cheGreat American Interchangevachipfuura neIsthmus yePanama yakanga ichangobva kuumbwa, kwavakabereka guanacos nemhuka dzakafanana. Zvizvarwa zveParacamelus zvakaramba zviripo muNorth America Arctic muLate Pleistocene. Zvinofungidzirwa kuti mhuka iyi yainge yakareba mamita anenge 2,7. Ngamera yeBactrian yakaparadzana nedromedary anenge makore 1 miriyoni akapfuura, maererano nezvinyorwa zvezvisaririra. 