▁ich nog ener a , ▁although ▁they ▁have ▁been ▁suggested ▁to ▁be ▁from ▁a ▁bas al ▁tit an osa ur iform . ▁The ▁tracks ▁are ▁wide - g au ge , ▁and ▁the ▁grouping ▁as ▁close ▁to ▁Sau rop od ich n us ▁is ▁also ▁supported ▁by ▁the ▁manus - to - pes ▁distance , ▁the ▁morph ology ▁of ▁the ▁manus ▁being ▁kid ney ▁bean - sh aped , ▁and ▁the ▁morph ology ▁of ▁the ▁pes ▁being ▁sub tri angular . ▁It ▁cannot ▁be ▁identified ▁whether ▁the ▁foot print s ▁of ▁the ▁her d ▁were ▁caused ▁by ▁ju ven iles ▁or ▁adult s , ▁because ▁of ▁the ▁lack ▁of ▁previous ▁track way ▁individual ▁age ▁identification . ▁ ▁Gener ally , ▁sau rop od ▁track ways ▁are ▁divided ▁into ▁three ▁categories ▁based ▁on ▁the ▁distance ▁between ▁opposite ▁lim bs : ▁narrow ▁gauge , ▁medium ▁gauge , ▁and ▁wide ▁gauge . ▁The ▁gauge ▁of ▁the ▁track way ▁can ▁help ▁determine ▁how ▁wide - set ▁the ▁lim bs ▁of ▁various ▁sau rop ods ▁were ▁and ▁how ▁this ▁may ▁have ▁impact ed ▁the ▁way ▁they ▁walked . ▁A ▁ 2 0 0 4 ▁study ▁by ▁Day ▁and ▁colle agues ▁found ▁that ▁a ▁general ▁pattern ▁could ▁be ▁found ▁among ▁groups ▁of ▁advanced ▁sau rop ods , ▁with ▁each ▁sau rop od ▁family ▁being ▁character ised ▁by ▁certain ▁track way ▁gau ges . ▁They ▁found ▁that ▁most ▁sau rop ods ▁other ▁than ▁tit an osa urs ▁had ▁narrow - g au ge ▁lim bs , ▁with ▁strong ▁impress ions