omy inae , ▁to ▁house ▁A pe om ys ▁and ▁M ega pe om ys . ▁The ▁Japanese ▁M ega pe om ys ▁was ▁named ▁as ▁a ▁separate ▁species , ▁M ega pe om ys ▁rep en ning i , ▁in ▁ 2 0 1 1 . ▁Further ▁a pe omy ines ▁have ▁been ▁identified ▁in ▁North ▁America : ▁M ega pe om ys ▁b ob w il son i ▁from ▁the ▁Hem ing ford ian ▁of ▁Nev ada , ▁A pe om yo ides ▁sav age i ▁from ▁the ▁Bar st ov ian ▁of ▁Nev ada , ▁Z op ho ape om ys ▁indic um ▁from ▁the ▁Late ▁O lig oc ene ▁of ▁South ▁Dak ota , ▁and ▁a ▁possible ▁second ▁species ▁of ▁Z op ho ape om ys ▁from ▁the ▁Late ▁O lig oc ene ▁of ▁Neb r aska . ▁Another ▁North ▁American ▁e omy id , ▁A rik are e om ys ▁sk inner i , ▁from ▁the ▁A rik are e an ▁of ▁Neb r aska , ▁has ▁also ▁been ▁re ident ified ▁as ▁an ▁a pe omy ine . ▁ ▁In ▁general , ▁a pe omy ines ▁are ▁a ▁w ides p read ▁but ▁generally ▁rare ▁group ▁of ▁dent ally ▁distinct ive ▁e omy ids ▁with ▁a ▁t endency ▁towards ▁large ▁size . ▁Fe j far ▁and ▁colle agues ▁suggested ▁that ▁a pe omy ines ▁were ▁e colog ically ▁distinct ▁from ▁other ▁e omy ids ▁and ▁probably ▁preferred ▁a ▁d rier ▁habitat . ▁Although ▁other ▁scient ists ▁recognized