According to the wiki the base attack of a para is 12... To the person who said u can take on a Rex with your melee 1000% parasaur, think again since ur damage each hit would only be 120...take into account that to get 1000% melee from, say 100%, I think u would have a parasaur of at least lv 300 or so. And that's if u don't distribute too many points on other stats. In which case u would probably face a lv 100- 300 Rex, quite strong enough to kill ur parasaur it in a fair fight

(Not sure since my best parasaur was a 360% lv167 parasaur, And It never felt suicidal enough to whistle attack on a Rex with it.)

Of course if you are talking about mounting you parasaur And keeping it behind the rex, utilizing it's wide turn radius, then sure. Yeah, since A lv10 parasaur leveled entirely in stamina could eventually win that fight, given time.