". ▁Po eb ro ther ium ▁ex im ium ▁can ▁be ▁translated ▁as ▁" Extra ordinary ▁grass - e ating ▁be ast " ▁Po eb ro ther ium ▁lab rat rum ▁can ▁be ▁translated ▁as ▁" Ch ief ▁grass - e ating ▁be ast " ▁or ▁" Ro yal ▁grass - e ating ▁be ast " ▁ ▁Description ▁ ▁Po eb ro ther ium ▁looked ▁more ▁like ▁modern ▁cam els ▁than ▁its ▁prede cess or ▁Pro ty lop us , ▁but ▁at ▁ ▁in ▁height , ▁it ▁was ▁roughly ▁the ▁size ▁of ▁a ▁modern ▁sheep . ▁Its ▁sk ull ▁res emble d ▁that ▁of ▁a ▁modern ▁ll ama , ▁while ▁its ▁lim bs ▁ended ▁in ▁ho oved ▁to es ▁and ▁were ▁more ▁built ▁for ▁speed ▁than ▁the ▁feet ▁of ▁Pro ty lop us . ▁Despite ▁this ▁apparent ▁adaptation ▁to ▁the ▁open ▁pla ins , ▁Po eb ro ther ium ▁has ▁been ▁found ▁in ▁all ▁major ▁White ▁River ▁environments , ▁including ▁for ests ▁and ▁river ▁over bank ▁depos its , ▁indicating ▁that ▁it ▁was ▁not ▁tied ▁to ▁one ▁particular ▁environment . ▁The ▁teeth ▁of ▁Po eb ro ther ium ▁were ▁more ▁general ised ▁than ▁those ▁of ▁modern ▁cam el ids . ▁In ▁fact , ▁despite ▁the ▁name ▁meaning ▁" gr ass - e ating ▁be ast " ▁it ▁is ▁likely ▁that ▁Po eb ro ther ium ▁was ▁either ▁a ▁browser ▁or ▁a ▁mixed - fe eder , ▁and ▁grass ▁may ▁have ▁played ▁a ▁minimal ▁role ▁in ▁the ▁di et ▁of ▁Po eb ro ther