DS game help with getting Spino from Torn Note and Fossil Hunter Shu

So recently I've been replaying this game on an emulator and having a blast but am struggling with this one side quest because it isn't really clear what to do or where to go, Can anyone explain to me where this fossil hunter shu guy is or how to trigger him to appear? I am so lost. The wiki says there is some dad or something in south euro plains you need to talk to for Shu to spawn in east gobi plains who then gives you the torn letter with instructions to dig up spino. But where is the dad? This quest is so vague. Plz if anyone can remember. Google is no help because there's only 1 or 2 mentions of this and they are useless and vague.