▁ ▁long ▁animal , ▁with ▁an ▁estimated ▁ ▁body ▁mass , ▁looked ▁like ▁a ▁smaller ▁version ▁of ▁its ▁r hin oc eros - like ▁relative ▁To x odon . ▁Its ▁front ▁legs ▁were ▁somewhat ▁longer ▁than ▁those ▁of ▁its ▁relatives , ▁making ▁its ▁hip ▁and ▁shoulder ▁height ▁about ▁equal . ▁A ▁small ▁horn ▁at op ▁Ad in other ium ''' s ▁sk ull ▁may ▁have ▁played ▁a ▁role ▁in ▁the ▁m ating ▁season . ▁▁ ▁References ▁▁▁ ▁Bibli ography ▁▁ ▁Cro ft , ▁D . A ., ▁F lyn n , ▁J . J . ▁and ▁Wy ss , ▁A . R . ▁ 2 0 0 4 . ▁ ▁Not ou ng ul ata ▁and ▁Lit op tern a ▁of ▁the ▁Early ▁Mi oc ene ▁Ch u cal ▁Fa una , ▁Northern ▁Chile . ▁Field iana ▁Ge ology ▁ 5 0 ( 1 ): 1 - 5 2 . ▁▁ ▁McK en na , ▁Mal col m ▁C ., ▁and ▁Bell , ▁Susan ▁K . ▁ 1 9 9 7 . ▁Classification ▁of ▁M amm als ▁A bove ▁the ▁Species ▁Level . '' ▁Columbia ▁University ▁Press , ▁New ▁York , ▁ 6 3 1 ▁pp . ▁▁ ▁Pal mer , ▁T . S . ▁ 1 9 0 4 . ▁Index ▁Gener um ▁M amm al ium : ▁a ▁List ▁of ▁the ▁Gener a ▁and ▁Famil ies ▁of ▁M amm als . ▁North ▁American ▁Fa una ▁ 2 3 : 1 - 9 8 4 . ▁ ▁Category : To x od