Common animals would be just basic animals (including horses. There are no wolves though)

you have Wolfos (they would fall under Uncommon, since they are vicious as hell and hard to tame). Wolfos think well... Wolfos from LOZ: Ocarina of Time, those wolf creatures that can move on both two and four legs (but more more quickly on four legs) and have tough skin. 

Bears (or whatever I think of their Ithelian equivalent to be) would probably be Uncommon though, also hard to tame. 

Hilks (those awesome stag-horse creatures I talked about earlier when I mentioned the tavern known as The Sleeping Hilk) would also fall under Uncommon. 

Exotic creatures are ones that are either much harder to tame, rare, or even slightly mystical (only very, very slightly)